Kronozio?
 

Found a couple variations I've been looking for on this site; never used them before. Any advice - good place to shop?

Check their feedback score, read the reviews, then decide for yourself is all I can offer.

I find it a convenient way to list cards on eBay. But unfortunately, I've never been able to make any money selling anything on eBay. It's not Kronozio's fault no one wants my cards. Their actual site just needs more eyeballs on it. I've sold a few, but my hustle is weak.

I've bought on Kronozio twice before, and have had a good experience both times. You can get some very good deals if you search. The one thing is to look out for sellers charging extra for each individual card. For example, a store might have a 20 cent card for 5 cents, so you think "wow, that's a great deal", but actually if the seller charges 25 cents for extra cards, it's a bad deal.

Hope this is helpful.