Both the Chase Freedom Flex® Card and the Discover it® Chrome stand out for their no annual fee and cash back rewards, which might by why you're considering them. The Freedom Flex edges ahead due to its higher potential cash back in rotating categories and a longer 0% introductory APR period on purchases.
The Discover it Chrome is still a strong contender with its own 0% intro APR offer on balance transfers for 18 months and no foreign transaction fees, making it a solid choice if you’re planning to transfer balances or travel abroad.