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The US Bank Altitude Reserve has 3% uncapped mobile wallet, and eBay takes Apple Pay.
If you actually redeem towards travel, multiply that by 1.5X for 4.5% cashback.
US Bank will almost certainly deny you unless you have low inquiries as well as new accounts, and it would help to have an existing account (get a checking and/or business checking sign up bonus).
However, you definitely also should be doing sign-up bonuses as it is free money.
If AMEX likes you, you could be doing a Biz Gold & Biz Plat every 3 months and probably some other cards from them too, and SUBs from Biz cards at other banks basically every month, including an Ink every 3 months.
Cash-out AMEX with Charles Schwab if desired.
It seems you don’t care about status (reconsider this) but if that changes then this spend could also easily get you some airline & hotel statuses.
You might run into credit limit issues and need to use multiple cards, but AMEX biz cards and maybe Capital One could help get around that with their charge cards.