WooCommerce Product Vendors  allows multiple vendors to sell via your site and in return take a commission on sales to cover the costs of managing the site.

Create a multi-vendor marketplace by assigning existing products to Vendors, or the Vendors can add and edit their own products. Each Vendor has a dedicated page where they list products, which can be displayed alongside yours on normal shop pages. You have total control of the amount of commission paid to each vendor, with the option of manually adding new commissions or editing existing ones.

Along with this main documentation page, there is also the Vendor Guide and the Product Vendors FAQ.