Welcome aboard!
I’m not the expert in the room so can’t offer any specific guidance. In fact I’m in the middle of sorting out my kit and space.
I have Dirac onboard my NAD AVR and understand ARC is highly regarded. I’d only offer that any correction isn’t a panacea. They are good, but only as good as the room will allow. And be patient, which may be the hardest thing to do.
Good luck!