A dragon

A siren of some sort

A griffin would be fun

Mishipeshu, because who wouldn't want to be a badass underwater panther? ;p

Well, being Scylla sounds fun, always wanted to be a sea monter killing sailors..

A pegasus >_>

Probably an elf

An incubus I'd say xD

Does a succubus count? lol

Some type of siren or nymph I'm sure, haha~

Hmm... Probably a fairy

Yuki-Onna

A succubus maybe or something along those lines

A dragon ofc

A phoenix