SimilarProducts displays matches your product tags and displays them in an OpenCart widget, which you can add to the product view. This is an awesome module for hand picking and displaying matching products.
✯ Compatible with OpenCart 2.0
✯ Customizable store front widget
✯ Custom position SimilarProducts on Product Page
✯ At least one matching tag is required to connect two products
✯ Clean and crisp implementation, no core files overwritten