no annual fee
2% flat rate cash back
need to open Fidelity account (free)
One of a few cards offering a real 2% flat rate cash back on all purchases - no rotating categories, no limits.
Fidelity cash management account is free to open, doesn't have minimum balance or maintenance fees.
Another good flat rate 2% cash back card is a Citi Double Cash card, which offers 1% cash back when you spend, and 1% of additional cash back when you pay off your balance in full.