You may want to add Citi’s Strata Premier card to CSP & Venture. This card now allows transfers to American Airline, which I don’t believe any other bank card does. It also transfers to Choice Hotels at a 1:2 ratio, so 20K Choice points for 10K Citi points. Choice has some very decent hotels in Europe.
The card carries yet another $95 annual fee, but if those transfer partners are ones you would use, it is one to consider. Pays 3X on groceries, gas, restaurants, and hotel & airfare, but not on other travel expenses. (Citi’s definition of travel is not as broad as Chase’s.)