Well, there's an overlap with the Mario rom hacking community - or the Mario community in general. I remember the Stardew Valley community to be also quite welcoming.
Are they? I've associated "cozy" games, cottagecore aesthetic, and anything kawaii pastel cute!!!!! with the most vile hateful bigots who would literally dox and murder you. They literally have. Never let your guard down around a S*nrio fan.
The last [little white cat with a bow] fan I knew was a crazy stalker who copied everything I did and tried to rape me. Her imitation was as flattering as blackface. But she knew how to hide her anger towards me and come off as harmless towards everyone else so I looked crazy for being scared of her, a harmless sweetheart who just looked up to me. Never again.