How do I implement a block suggesting other relevant content? I want to put a block in the left column on my products page, to suggest similar products. Can I do this with a block based on the "search API" module? Does this module allow to propose products in a block, similar to the viewed page?
Try to use Similar Entries module for this.


  Similar Entries provides lists of links to site content related to the current node being viewed. Links can be displayed in standard blocks or as part of custom views.