Hobby Question: Kronozio?

I am on the hunt for a decent card site that sells base cards. I use SportLots a lot for that reason but am curious if any of you have ever used Kronozio? Are they more of an alternative to the Beckett marketplace than SportLots? COMC is really missing the boat on base cards.

I am asking this question because I was trying to find Clerks base cards and SportLots doesn’t even have a category that fits the cards. If anyone has a lead then let me know.