diff --git a/app/Models/Alert.php b/app/Models/Alert.php
index 641e2117b6..6f68beaa16 100644
--- a/app/Models/Alert.php
+++ b/app/Models/Alert.php
@@ -26,6 +26,8 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use LibreNMS\Enum\AlertState;
 
 class Alert extends Model
@@ -56,17 +58,17 @@ class Alert extends Model
 
     // ---- Define Relationships ----
 
-    public function device()
+    public function device(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Device::class, 'device_id');
     }
 
-    public function rule()
+    public function rule(): BelongsTo
     {
         return $this->belongsTo(\App\Models\AlertRule::class, 'rule_id', 'id');
     }
 
-    public function users()
+    public function users(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\User::class, 'devices_perms', 'device_id', 'user_id');
     }
diff --git a/app/Models/AlertRule.php b/app/Models/AlertRule.php
index 84df98f4bd..ee525d90c2 100644
--- a/app/Models/AlertRule.php
+++ b/app/Models/AlertRule.php
@@ -25,6 +25,8 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use LibreNMS\Enum\AlertState;
 
 class AlertRule extends BaseModel
@@ -78,12 +80,12 @@ class AlertRule extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function alerts()
+    public function alerts(): HasMany
     {
         return $this->hasMany(\App\Models\Alert::class, 'rule_id');
     }
 
-    public function devices()
+    public function devices(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\Device::class, 'alert_device_map', 'device_id', 'device_id');
     }
diff --git a/app/Models/Device.php b/app/Models/Device.php
index 231883ba1f..3556fe8075 100644
--- a/app/Models/Device.php
+++ b/app/Models/Device.php
@@ -6,6 +6,11 @@ use Fico7489\Laravel\Pivot\Traits\PivotEventTrait;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\ModelNotFoundException;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\HasManyThrough;
+use Illuminate\Database\Eloquent\Relations\MorphToMany;
 use Illuminate\Database\Query\JoinClause;
 use Illuminate\Support\Str;
 use LibreNMS\Exceptions\InvalidIpException;
@@ -17,6 +22,11 @@ use LibreNMS\Util\Time;
 use LibreNMS\Util\Url;
 use Permissions;
 
+/**
+ * @property-read int|null $ports_count
+ * @property-read int|null $sensors_count
+ * @property-read int|null $wirelessSensors_count
+ */
 class Device extends BaseModel
 {
     use PivotEventTrait, HasFactory;
@@ -525,298 +535,298 @@ class Device extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function accessPoints()
+    public function accessPoints(): HasMany
     {
         return $this->hasMany(AccessPoint::class, 'device_id');
     }
 
-    public function alerts()
+    public function alerts(): HasMany
     {
         return $this->hasMany(\App\Models\Alert::class, 'device_id');
     }
 
-    public function attribs()
+    public function attribs(): HasMany
     {
         return $this->hasMany(\App\Models\DeviceAttrib::class, 'device_id');
     }
 
-    public function alertSchedules()
+    public function alertSchedules(): MorphToMany
     {
         return $this->morphToMany(\App\Models\AlertSchedule::class, 'alert_schedulable', 'alert_schedulables', 'schedule_id', 'schedule_id');
     }
 
-    public function applications()
+    public function applications(): HasMany
     {
         return $this->hasMany(\App\Models\Application::class, 'device_id');
     }
 
-    public function bgppeers()
+    public function bgppeers(): HasMany
     {
         return $this->hasMany(\App\Models\BgpPeer::class, 'device_id');
     }
 
-    public function cefSwitching()
+    public function cefSwitching(): HasMany
     {
         return $this->hasMany(\App\Models\CefSwitching::class, 'device_id');
     }
 
-    public function children()
+    public function children(): BelongsToMany
     {
         return $this->belongsToMany(self::class, 'device_relationships', 'parent_device_id', 'child_device_id');
     }
 
-    public function components()
+    public function components(): HasMany
     {
         return $this->hasMany(\App\Models\Component::class, 'device_id');
     }
 
-    public function hostResources()
+    public function hostResources(): HasMany
     {
         return $this->hasMany(HrDevice::class, 'device_id');
     }
 
-    public function entityPhysical()
+    public function entityPhysical(): HasMany
     {
         return $this->hasMany(EntPhysical::class, 'device_id');
     }
 
-    public function eventlogs()
+    public function eventlogs(): HasMany
     {
         return $this->hasMany(\App\Models\Eventlog::class, 'device_id', 'device_id');
     }
 
-    public function graphs()
+    public function graphs(): HasMany
     {
         return $this->hasMany(\App\Models\DeviceGraph::class, 'device_id');
     }
 
-    public function groups()
+    public function groups(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\DeviceGroup::class, 'device_group_device', 'device_id', 'device_group_id');
     }
 
-    public function ipsecTunnels()
+    public function ipsecTunnels(): HasMany
     {
         return $this->hasMany(IpsecTunnel::class, 'device_id');
     }
 
-    public function ipv4()
+    public function ipv4(): HasManyThrough
     {
         return $this->hasManyThrough(\App\Models\Ipv4Address::class, \App\Models\Port::class, 'device_id', 'port_id', 'device_id', 'port_id');
     }
 
-    public function ipv6()
+    public function ipv6(): HasManyThrough
     {
         return $this->hasManyThrough(\App\Models\Ipv6Address::class, \App\Models\Port::class, 'device_id', 'port_id', 'device_id', 'port_id');
     }
 
-    public function location()
+    public function location(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Location::class, 'location_id', 'id');
     }
 
-    public function mefInfo()
+    public function mefInfo(): HasMany
     {
         return $this->hasMany(MefInfo::class, 'device_id');
     }
 
-    public function muninPlugins()
+    public function muninPlugins(): HasMany
     {
         return $this->hasMany(\App\Models\MuninPlugin::class, 'device_id');
     }
 
-    public function ospfInstances()
+    public function ospfInstances(): HasMany
     {
         return $this->hasMany(\App\Models\OspfInstance::class, 'device_id');
     }
 
-    public function ospfNbrs()
+    public function ospfNbrs(): HasMany
     {
         return $this->hasMany(\App\Models\OspfNbr::class, 'device_id');
     }
 
-    public function ospfPorts()
+    public function ospfPorts(): HasMany
     {
         return $this->hasMany(\App\Models\OspfPort::class, 'device_id');
     }
 
-    public function netscalerVservers()
+    public function netscalerVservers(): HasMany
     {
         return $this->hasMany(NetscalerVserver::class, 'device_id');
     }
 
-    public function packages()
+    public function packages(): HasMany
     {
         return $this->hasMany(\App\Models\Package::class, 'device_id', 'device_id');
     }
 
-    public function parents()
+    public function parents(): BelongsToMany
     {
         return $this->belongsToMany(self::class, 'device_relationships', 'child_device_id', 'parent_device_id');
     }
 
-    public function perf()
+    public function perf(): HasMany
     {
         return $this->hasMany(\App\Models\DevicePerf::class, 'device_id');
     }
 
-    public function ports()
+    public function ports(): HasMany
     {
         return $this->hasMany(\App\Models\Port::class, 'device_id', 'device_id');
     }
 
-    public function portsFdb()
+    public function portsFdb(): HasMany
     {
         return $this->hasMany(\App\Models\PortsFdb::class, 'device_id', 'device_id');
     }
 
-    public function portsNac()
+    public function portsNac(): HasMany
     {
         return $this->hasMany(\App\Models\PortsNac::class, 'device_id', 'device_id');
     }
 
-    public function processors()
+    public function processors(): HasMany
     {
         return $this->hasMany(\App\Models\Processor::class, 'device_id');
     }
 
-    public function routes()
+    public function routes(): HasMany
     {
         return $this->hasMany(Route::class, 'device_id');
     }
 
-    public function rules()
+    public function rules(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\AlertRule::class, 'alert_device_map', 'device_id', 'rule_id');
     }
 
-    public function sensors()
+    public function sensors(): HasMany
     {
         return $this->hasMany(\App\Models\Sensor::class, 'device_id');
     }
 
-    public function serviceTemplates()
+    public function serviceTemplates(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\ServiceTemplate::class, 'service_templates_device', 'device_id', 'service_template_id');
     }
 
-    public function services()
+    public function services(): HasMany
     {
         return $this->hasMany(\App\Models\Service::class, 'device_id');
     }
 
-    public function storage()
+    public function storage(): HasMany
     {
         return $this->hasMany(\App\Models\Storage::class, 'device_id');
     }
 
-    public function stpInstances()
+    public function stpInstances(): HasMany
     {
         return $this->hasMany(Stp::class, 'device_id');
     }
 
-    public function mempools()
+    public function mempools(): HasMany
     {
         return $this->hasMany(\App\Models\Mempool::class, 'device_id');
     }
 
-    public function mplsLsps()
+    public function mplsLsps(): HasMany
     {
         return $this->hasMany(\App\Models\MplsLsp::class, 'device_id');
     }
 
-    public function mplsLspPaths()
+    public function mplsLspPaths(): HasMany
     {
         return $this->hasMany(\App\Models\MplsLspPath::class, 'device_id');
     }
 
-    public function mplsSdps()
+    public function mplsSdps(): HasMany
     {
         return $this->hasMany(\App\Models\MplsSdp::class, 'device_id');
     }
 
-    public function mplsServices()
+    public function mplsServices(): HasMany
     {
         return $this->hasMany(\App\Models\MplsService::class, 'device_id');
     }
 
-    public function mplsSaps()
+    public function mplsSaps(): HasMany
     {
         return $this->hasMany(\App\Models\MplsSap::class, 'device_id');
     }
 
-    public function mplsSdpBinds()
+    public function mplsSdpBinds(): HasMany
     {
         return $this->hasMany(\App\Models\MplsSdpBind::class, 'device_id');
     }
 
-    public function mplsTunnelArHops()
+    public function mplsTunnelArHops(): HasMany
     {
         return $this->hasMany(\App\Models\MplsTunnelArHop::class, 'device_id');
     }
 
-    public function mplsTunnelCHops()
+    public function mplsTunnelCHops(): HasMany
     {
         return $this->hasMany(\App\Models\MplsTunnelCHop::class, 'device_id');
     }
 
-    public function printerSupplies()
+    public function printerSupplies(): HasMany
     {
         return $this->hasMany(PrinterSupply::class, 'device_id');
     }
 
-    public function pseudowires()
+    public function pseudowires(): HasMany
     {
         return $this->hasMany(Pseudowire::class, 'device_id');
     }
 
-    public function rServers()
+    public function rServers(): HasMany
     {
         return $this->hasMany(LoadbalancerRserver::class, 'device_id');
     }
 
-    public function slas()
+    public function slas(): HasMany
     {
         return $this->hasMany(Sla::class, 'device_id');
     }
 
-    public function syslogs()
+    public function syslogs(): HasMany
     {
         return $this->hasMany(\App\Models\Syslog::class, 'device_id', 'device_id');
     }
 
-    public function users()
+    public function users(): BelongsToMany
     {
         // FIXME does not include global read
         return $this->belongsToMany(\App\Models\User::class, 'devices_perms', 'device_id', 'user_id');
     }
 
-    public function vminfo()
+    public function vminfo(): HasMany
     {
         return $this->hasMany(\App\Models\Vminfo::class, 'device_id');
     }
 
-    public function vlans()
+    public function vlans(): HasMany
     {
         return $this->hasMany(\App\Models\Vlan::class, 'device_id');
     }
 
-    public function vrfLites()
+    public function vrfLites(): HasMany
     {
         return $this->hasMany(\App\Models\VrfLite::class, 'device_id');
     }
 
-    public function vrfs()
+    public function vrfs(): HasMany
     {
         return $this->hasMany(\App\Models\Vrf::class, 'device_id');
     }
 
-    public function vServers()
+    public function vServers(): HasMany
     {
         return $this->hasMany(LoadbalancerVserver::class, 'device_id');
     }
 
-    public function wirelessSensors()
+    public function wirelessSensors(): HasMany
     {
         return $this->hasMany(\App\Models\WirelessSensor::class, 'device_id');
     }
diff --git a/app/Models/DeviceGroup.php b/app/Models/DeviceGroup.php
index 9a7a4df516..c5306589cd 100644
--- a/app/Models/DeviceGroup.php
+++ b/app/Models/DeviceGroup.php
@@ -24,6 +24,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use LibreNMS\Alerting\QueryBuilderFluentParser;
 use Log;
 use Permissions;
@@ -162,22 +163,22 @@ class DeviceGroup extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function devices()
+    public function devices(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\Device::class, 'device_group_device', 'device_group_id', 'device_id');
     }
 
-    public function services()
+    public function services(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\Service::class, 'device_group_device', 'device_group_id', 'device_id');
     }
 
-    public function users()
+    public function users(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\User::class, 'devices_group_perms', 'device_group_id', 'user_id');
     }
 
-    public function serviceTemplates()
+    public function serviceTemplates(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\ServiceTemplate::class, 'service_templates_device_group', 'device_group_id', 'service_template_id');
     }
diff --git a/app/Models/DeviceRelatedModel.php b/app/Models/DeviceRelatedModel.php
index 95257e0a1a..9afc87f149 100644
--- a/app/Models/DeviceRelatedModel.php
+++ b/app/Models/DeviceRelatedModel.php
@@ -24,6 +24,8 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
 class DeviceRelatedModel extends BaseModel
 {
     // ---- Query Scopes ----
@@ -44,7 +46,7 @@ class DeviceRelatedModel extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function device()
+    public function device(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Device::class, 'device_id', 'device_id');
     }
diff --git a/app/Models/Location.php b/app/Models/Location.php
index b7851c6550..a58e5c3674 100644
--- a/app/Models/Location.php
+++ b/app/Models/Location.php
@@ -28,6 +28,7 @@ use Illuminate\Contracts\Container\BindingResolutionException;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use LibreNMS\Util\Dns;
 
 class Location extends Model
@@ -162,7 +163,7 @@ class Location extends Model
 
     // ---- Define Relationships ----
 
-    public function devices()
+    public function devices(): HasMany
     {
         return $this->hasMany(\App\Models\Device::class, 'location_id');
     }
diff --git a/app/Models/PortRelatedModel.php b/app/Models/PortRelatedModel.php
index 8b0e213586..921e6903dd 100644
--- a/app/Models/PortRelatedModel.php
+++ b/app/Models/PortRelatedModel.php
@@ -24,6 +24,8 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
 abstract class PortRelatedModel extends BaseModel
 {
     // ---- Query scopes ----
@@ -35,7 +37,7 @@ abstract class PortRelatedModel extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function port()
+    public function port(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Port::class, 'port_id', 'port_id');
     }
diff --git a/app/Models/PortsFdb.php b/app/Models/PortsFdb.php
index f0692ce301..5f0f859585 100644
--- a/app/Models/PortsFdb.php
+++ b/app/Models/PortsFdb.php
@@ -2,6 +2,8 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
 class PortsFdb extends PortRelatedModel
 {
     protected $table = 'ports_fdb';
@@ -10,12 +12,12 @@ class PortsFdb extends PortRelatedModel
 
     // ---- Define Relationships ----
 
-    public function device()
+    public function device(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Device::class, 'device_id', 'device_id');
     }
 
-    public function vlan()
+    public function vlan(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Vlan::class, 'vlan_id', 'vlan_id');
     }
diff --git a/app/Models/Route.php b/app/Models/Route.php
index f345913811..6a3dcd3ff3 100644
--- a/app/Models/Route.php
+++ b/app/Models/Route.php
@@ -39,11 +39,6 @@ class Route extends DeviceRelatedModel
     public $timestamps = true;
 
     // ---- Define Relationships ----
-    public function device()
-    {
-        return $this->belongsTo(\App\Models\Device::class, 'device_id', 'device_id');
-    }
-
     public function port()
     {
         return $this->belongsTo(\App\Models\Port::class, 'port_id', 'port_id');
diff --git a/app/Models/ServiceTemplate.php b/app/Models/ServiceTemplate.php
index f22cd085d3..767607781d 100644
--- a/app/Models/ServiceTemplate.php
+++ b/app/Models/ServiceTemplate.php
@@ -26,6 +26,7 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use LibreNMS\Alerting\QueryBuilderFluentParser;
 use Log;
 
@@ -197,17 +198,17 @@ class ServiceTemplate extends BaseModel
 
     // ---- Define Relationships ----
 
-    public function devices()
+    public function devices(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\Device::class, 'service_templates_device', 'service_template_id', 'device_id');
     }
 
-    public function services()
+    public function services(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\Service::class, 'service_templates_device', 'service_template_id', 'device_id');
     }
 
-    public function groups()
+    public function groups(): BelongsToMany
     {
         return $this->belongsToMany(\App\Models\DeviceGroup::class, 'service_templates_device_group', 'service_template_id', 'device_group_id');
     }
diff --git a/app/Models/UserWidget.php b/app/Models/UserWidget.php
index 608b686fbe..46e4b318bd 100644
--- a/app/Models/UserWidget.php
+++ b/app/Models/UserWidget.php
@@ -3,6 +3,8 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasOne;
 
 class UserWidget extends Model
 {
@@ -14,17 +16,17 @@ class UserWidget extends Model
 
     // ---- Define Relationships ----
 
-    public function user()
+    public function user(): BelongsTo
     {
         return $this->belongsTo(\App\Models\User::class, 'user_id');
     }
 
-    public function widget()
+    public function widget(): HasOne
     {
         return $this->hasOne(\App\Models\Widget::class, 'widget_id');
     }
 
-    public function dashboard()
+    public function dashboard(): BelongsTo
     {
         return $this->belongsTo(\App\Models\Dashboard::class, 'dashboard_id');
     }