You can go to the Customizer → WooCommerce → Product Catalog to set the initial sort order of products in your online store using the WordPress Customizer. You can choose default sorting (custom ordering + name), popularity, average rating, most recent, and price.

Go to Products > Merchandizing. Use the select box at the top of the merchandizing page to choose the category or other archive to provide a sorting order for. Drag-and-drop your products to sort them as you require. Click the Save Changes button to save and publish the changes.

To manually choose the WooCommerce Product Sort order, first go to your products in your WordPress site, then click on the Sorting tab as shown below. Now you can simply drag and drop your products up and down to select the order. Just click on a product and drag it up or down to change the order.