but i just checked on newegg page and it's not compatible with ryzen 3 3200g https://www.newegg.com/asrock-b550m...50M_HDV-_-13-157-953-_-Product&quicklink=trueAny board would be fine for such CPU, but depends more on what you are looking for on a mobo, ports, features etc.
Right now doesnt make much sense to me buying a B450 when you have B550's like the B550M HDV for 79$.