WooCommerce: display “add to wishlist” button on shop page
WooCommerce has an excellent add-on called “WooCommerce Wishlists” that you can get here. This add-on adds an “add to wishlist” button on the product page by default. Here is a quick snippet to add this button on archive pages too (categories pages, main shop page etc…).
Here is the final result:
Place that snippet in functions.php in your theme’s folder.