What prepay cards are really any good for cyrpto?

I've seen hundreds of chats about 'good or bad' cards, but never seen a proper comparison. Not only that, everyone, when they launch cards, promise the earth (cash back for example), only for the fine print to limit it massively. Then there's the hidden spreads in FX etc... I’m planning a research project to collect people’s real-world experiences with prepaid or reloadable Visa and Mastercard…