Hello,

You can achieve this by installing two important plugins to your WordPress site.

1. Woocommerce
2. Dokan or other multi vendor plugins

Woocommerce converts your site to an online store, while Dokan allows other sellers to sell on your site while you earn commissions from their sale. There are other alternatives to Dokan that could be used to achieve multi-vendor features on your WordPress site.

Best Regards.