Both the Capital One Savor Cash Rewards Credit Card and the American Express Cash Magnet Card offer cash back rewards without annual fees, paired with introductory APR offers. The Savor Cash is best if you are prioritizing cash back in specific categories, such as entertainment and dining.
However, the Amex Cash Magnet offers a flat cash back rate on all purchases, which could be beneficial for those seeking straightforward rewards. While neither card is co-branded, each provides unique benefits that cater to different preferences.