My Chase trifecta are the CSR, Chase Freedom, and Freedom Unlimited. Without getting deep into it, these allow me to travel in business class and stay in 5 star hotels for free.
I use Discover occasionally, for the 5% category. Made over 4k in cash back when they had the double cash plus Apple Pay promotion a couple years back.
Then I have my Amex Blue Cash Preferred (6% up to 6k) and Everyday (3% up to 6k) in groceries (and gift cards they sell)
Then finally we have the Starwood Preferred Guest from AMEX. This is my bread and butter manufacture spend card. Running about 20k a month through this bad boy and with the 1:3 conversion to Marriott points, I’ve redeemed 4 vacation packages so far. Going to use a 7 night category 9 certificate for the JW this summer in Cancun. Next year I’ll burn two category 7, 7 night certificates in Paris France while using United miles to get us there in Business/First.