Generate traffic to product listings

What are some low cost and effective ways to drive traffic to my product listings? Have you had success with Facebook groups? Instagram? Youtube? Forums?

Assuming you are competing with another FBA seller or two - If you have an existing audience (FB Page, FB Group, Email list, etc), is there a way to use something like a super URL to make it so that people who purchase are buying your products versus those of the competitor?

I would think the link tied to your storefront (similar to when you click through on sellers storefront) would do the trick as it only shows your item.