Hi Elharym
Based on Namebio.com statistics, the keyword "sneaker" is not a very sellable word. There are only 9 sales including this keyword at the end of the domain over the past 5 years. Of all the recent sales, none are sold at retail price. Also, if you are looking for exact match domains to resell, if possible, get the plural version of the product keyword (e.g. sneakers instead of sneaker) because keywords in the singular version usually denote a brand.
My comment is short, hope this helps refine your domain search further!
abcuser123