I just search a product similar to what I need, even if it's bad quality when I add it to the cart I'll get recommendations for the good ones with better price.

I just search a product similar to what I need, even if it's bad quality when I add it to the cart I'll get recommendations for the good ones with better price. Carefully check the comments for non-spam. Haven't had problems using this method. The search engine is optimizing to get FBA crap out of their warehouse before it rots/explodes.