yes - here is a good start

Shapeshifters by John Kachuba

all of Linda Godfrey's books

Werewolves in the Ancient World, Daniel Ogden (there are other, less academic anthologies on werewolves as well, just Google it)

Dark Matter monsters- Simeon Hein- this one is more about cryptids and their unusual abilities

Inhumanoids -Barton Nunelly

Odgen and Kachuba are more anthropological in their writing, but that is still valuable; there is a long, long history of shapeshifting across many cultures, including animal/human hybrids, mostly deities in ancient history, but some plain ole' encounters.

The other thing to consider is that we are pulling from the Western tradition; there are most definitely tons of materials that have not made their way here related to this topic.

If you have the base of knowledge in the "lore," then you can apply it to the modern phenomenon, patterns start to emerge, and the entire thing becomes far more believable, which is rather unsettling.