I use the Capital one card for 4% back on entertainment and dining, 3% on supermarkets and pharmacies, 1% on all others. Additionally when sign up get $300 cash back after spending $3000 in 1st 3 months. The annual fee of $95 is waived the first year but worth it due to the amount of cash back.
This program with electric bills saves you about 10% on your electric bill using solar farm's solar. I use PSEGLI but several electric utility companies use this program.
Additionally for using the referral link you would get a $50 gift card.