Something I really like doing is imagining how Cryptids would fit into the Cthulhu Mythos. What would a gormless Miskatonic Alumni find when investigating a cryptid hotspot?
So I'm doing a split, top row is actual sightings of Mothman and similar creatures, bottom row are Mythos entities that might "explain" the sightings. Not all of them have to be true at once. Consider them possibilities, CoC investigation prompts or even in-universe theories by people "in the know".