You should go for the Crypto. com card, the problem is that recently they decreased cards' bonuses, if I remember correctly to have a card you should stake at least 350$ in CRO, but as you can see it "stopped to be so convenient".

The first card needs 350$ stake, than it's x10 (3'500$, 35'000$ and 350'000$)

I would recommend going for a CRO card only if you believe that CRO will regain its value after the recent big loss (cause of the cards' changes).