I've generally tried to stay with cash back rewards in categories that don't change, that's been the best way to balance complexity with rewards for me while not nudging me to buy stuff I don't actually need. I don't like messing with points or rotating categories or included subscriptions. With one exception I avoid annual fees as well.

So like, I have a card that's 6% on groceries, another that's 3% on gas and restaurants, Apple Card does 2% on Apple Pay transactions, and I have a 1.5% card for everything else.