I’ve been looking into this too, and there are honestly way more options than I expected. You can go with a full-size classic cabinet, a multicade setup, or even something smaller if you don’t have a ton of space. I found some useful ideas and arcade machine info on https://arcadedad.com/ while comparing different setups. I’d definitely figure out what games you actually want to play first, because some machines look great but have a pretty limited game selection.