Similar products is a PrestaShop module that allows to create list with "similar" or "related" (or others) products on each product page in your shop. Each product can have differetn products in these lists, and of course you can create unlimited number of lists with different configuration.
This awesome PrestaShop module allows to display list of products based on many settings. You can for example display products from selected category, display custom selected products, display new products, display best sellers from your store, or display recently added products (new products).
You can find there only valuable solutions for your e-commerce shop based on PrestaShop engine. Search the best plugin for your store that will meet your requirements and just use it.