Move Model Classes into app/
The following assumes that you've been following this tutorial, which means that you only have one model class so far—the User model that comes by default with Laravel. It also assumes you're not using the User model anywhere other than in Laravel's auth scaffold classes.
Create new Models directory
Add a new directory: app/Models — You can put the Models directory anywhere, but inside the main app directory seems like an ideal place.
Move User.php into app/Models
Once you do this, it will break your app.
Modify files acordingly
User.php
Change the namespace at the top:
namespace App\ModelsRegisterController.php
Change at top:
use App\Models\Userconfig/auth.php
Change in the 'providers' array:
'users' => [
'driver' => 'eloquent',
'model' => App\Models\User::class,
],