1. Events Class

app/Events/UserRegistered.php

                    namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

class UserRegistered
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    public $user_id;
    public $name;
    public $email;
    public $token;

    /**
     * Create a new event instance.
     *
     * @return  void
     */
    public function __construct($user_id, $name, $email, $token)
    {
        $this->user_id         = $user_id;
        $this->name         = $name;
        $this->email         = $email;
        $this->token         = $token;
    }

    // /**
    //  * Get the channels the event should broadcast on.
    //  *
    //  * @return  \Illuminate\Broadcasting\Channel|array
    //  */
    // public function broadcastOn()
    // {
    //     return new PrivateChannel('channel-name');
    // }
}

2. Listener Class

app/Listeners/SendWelcomeMail.php

namespace App\Listeners;

use App\Events\UserRegistered;
use App\Mails\Welcome;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Support\Facades\Mail;

class SendWelcomeMail
{
    /**
     * Create the event listener.
     *
     * @return  void
     */
    public function __construct()
    {
        //
    }

    /**
     * Handle the event.
     *
     * @param    \App\Events\UserRegistered  $event
     * @return  void
     */
    public function handle(UserRegistered $event)
    {
        //perfom more actions(if need be)

        Mail::to($event->email)->send(new Welcome($event->name, $event->token,$event->user_id ));

    }
}

3. Mail Class

app/Mails/Welcome.php

  
namespace App\Mails;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Mail\Mailables\Content;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Queue\SerializesModels;
use Illuminate\Mail\Mailables\Address;

use \App\models\Notification;


class Welcome extends Mailable
{
    use Queueable, SerializesModels;

    public $data;

    /**
     * Create a new message instance.
     *
     * @return  void
     */
    public function __construct($name, $token, $user_id)
    {
        $this->data['name'] = $name;
        $this->data['token'] = $token;
        $this->data['user_id'] = $user_id;
    }

    /**
     * Get the message envelope.
     *
     * @return  \Illuminate\Mail\Mailables\Envelope
     */
    public function envelope()
    {
        return new Envelope(
            subject: 'Activation Email',
        );
    }

    /**
     * Get the message content definition.
     *
     * @return  \Illuminate\Mail\Mailables\Content
     */
    public function content()
    {
        $content= new Content(
            markdown: 'emails.user_activation',
            with:$this->data
        );

        

        Notification::create(
           [ 
            'user_id'=>$this->data['user_id'],
             'content'=>$this->data['token']
           ]
        );

        return $content;
    }

    /**
     * Get the attachments for the message.
     *
     * @return  array
     */
    public function attachments()
    {
        return [];
    }
}

4. Controller

app/Http/Controllers/

use App\Events\UserRegistered;

.... 
.... 

event(new UserRegistered( $user->id, $request->name, $request->email, $uuid));