For gas (5.25%), grocery/Costco/Walmart (3.5%), I use Bank of America Cash Rewards
For Amazon purchase, I use Amazon Store Card (5%)
For restaurant, travel, I use Chase Sapphire Reserve (3 X UR points)
For everything else, I use Bank of America Travel Rewards (2.625%)
There is also Chase Freedom. For 5% cash back quarterly category, I use Lyft this quarter and paid internet last quarter.
I prepaid phone and internet to cash in on that.