CHC and I were accommodated in the Renaissance Hotel in Bangkok for our recent conference. The Renaissance Hotel is part of the Marriott chain of hotels (Marriott Bonvoy points). It is centrally located in Bangkok, within walking distance from Erawan Shrine (and very near to the Holiday Inn hotel which I stayed in back in 2018).
There is a BTS station just a stone-throw away from the hotel with Central World and Big C shopping center being nearby. This makes the hotel extremely convenient for moving around, food and shopping.