Hashtags exist for that purpose. You can follow them to be put into your home feed. As well, if you use the advanced web interface (like tweet deck), you can create a column with modifiers. Such as, I have a column that searches for both #pixelart and #lowpoly, but excludes posts with #NSFW or #Lewd, as well as #Pokemon (because I have a separate column for pokemon pixel artwork & lowpoly specifically)

I have heard misskey and calckey have a sort of trending feed, but not quite algorithmic, but unsure completely.