Have you guys tried the Bitcoin Company.
You can purchase gift cards for various merchants and get sats back. Kind of like fold but you can pay in Bitcoin via onchain or lightning.
I just bought $100 in gas gift cards, got 1.6% sats back paying with Bitcoin (not the greatest rewards back but it's gas cards, will be used in a week). I immediately bought 100 bucks in bitcoin back after the transaction.
Check it out if you haven't already.