The YITH WooCommerce Frequently Bought Together plugin lets you add product suggestions with a simple summary in each product page.
Restrict access to any WooCommerce product, depending on the ownership and/or purchase of other, prerequisite items.
This plugin lets you display (on a product page) additional products that are frequently bought together, along with the given product.
Easily integrate Mozilla's TogetherJS collaboration system into a WordPress site.
A sidebar widget that displays both the pages and categories as a single list.