Random select value on array factory Laravel

Make use of randomElement method

'type' => $faker->randomElement(['seller', 'buyer']),

Laravel version >= 5.6

use Illuminate\Support\Arr;

$array = [1, 2, 3, 4, 5];

$random = Arr::random($array);

// 4 - (retrieved randomly)

"type" => Arr::random($array);