This site popped up as an advertsing request on my project wonderful today. You can email them and request to be added to search results.
this site is running a virtual craft show. A booth is $10. No commission to them and your site has to handle checkout. etsy has this covered.
I don't have any experience with either site, but the "be a careful shopper" advice always applies. Personally, for $10 I am going to try the craft fair thing.