topnotch_website/database/seeders/OrderSeeder.php

<?php

namespace Database\Seeders;

use App\Models\Customer;
use App\Models\Order;
use Illuminate\Database\Seeder;

class OrderSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        foreach (Customer::all() as $customer) {
            Order::factory(rand(2, 10), ['customer_id' => $customer])->create();
        }
    }
}