One CC I tried made me take a placement test, but I tested out of the one class I was going for.

CCs will take just about anyone with a HS diploma or GED. There's not really an option to redo those courses, so you just start at the entry level stuff in CC, which is the stuff you should have been taught in HS anyway. It doesn't matter because you're expect to use very, very little of that you take all that time and money learning. It's all very performative.