Amazon card is a good option. 5% cashback on Amazon purchases (and often with "no interest if paid within 12 months" type terms on stuff like TVs. 2% on gas and 1% on everything else. Cashback accrues in practically real time and is useable on 99% of products on Amazon, so it's very normal-person friendly as it doesn't require optimization of habits if you already buy a lot of stuff on the 'zon. Super simple since it just rewards flat dollars, no points or annual thresholds or loyalty programs or...
Also doesn't require the insanely good credit of the Apple card.