I have a Goodreads group I made awhile ago called “Creatures, Creatures Everywhere!” that is about, well creatures of course. At the moment it’s heavily horror leaning but you don’t need to read horror to be in it. There are places for fantasy, paranormal romance etc. If creatures are in the story, any type of creature (mermaids, aliens, cryptids, ghosts etc.), it counts. There are over 350 members at the moment and we have monthly group reads but they are optional (and are voted on!). The group is Here if you wanna check it out!