The Chime prepaid card offers cashback rewards at various merchants where you spend $xx and get back $x. Currently, there are offers at Gamestop $5 off $50, Chipotle free $1, Gap and Banana and Anthropologie $3 off $25, and Sephora $2 off $20.
They’ve now started offering category rewards and you can spend the required amount at any merchant within the category to trigger the cashback reward.
These offers are found alongside the merchant-specific offers. The only current offer I see in my account is to get $3 off $25 on Utilities.
The offers are too small for me to bother with recently, but some may find these interesting.