Hmm, have you thought about joining some discords for people with similar interests, if you share your vision there I believe many would follow. A lot of Discords have channels about promotions of other games, quite wholesome actually, try FMG World, Ginas Gym, Bayshore Academy, and also DeviantArt groups.
and honestly if you managed to pump this out in only a few weeks by yourself, I can only imagine what you could do with a couple peeps more. I guess I can help aswell if you ever need ideas or some art also.