Get AmEx Plat for all the travel perks.
Ritz Carlton pays itself. Gives you full PP pass as good as CSR and all the travel benefits CSR offers. A lot more benefits if people stay at Marriott/RC properties. You do not need to work anything to break-even. No Lyft & Doordash craps.
Chase CIP. Almost the same as CSR. But with much cheaper AF and easier to mange.
Citi DC with 2 TY points. Handsomely beats out FU.
If you want cash, BofA Cash Rewards and BofA biz cash rewards give you 3% x 1.75 (if top tiers) 5.25% on some broad category spending. The new Biz Choice Cash card offers that for up to $50,000 travel expenses. 5.25% cold cash on travel or the broad category you so choose.

There are lot more. Go figure.

CSR? Sure you can just carry one card and enjoy whatever you do. But please do not say CSR is the greatest CC. It is not. It is so outdated now.