Animals

Laritte and Ian have a cat together--they're cat parents

Jaina has 3 pet monsters

Vasser has Little Monster (he's like a puppy)

Hari is in the form of a dog (reincarnated), but she'll probably be able to transform into a human later on. I hope she'll be able to shapeshift back and forth.

Reinelle can shapeshift between a crow and human-form

Lots of animals (mainly black leopards, but the FL is also in her rabbit form for a long time in the story), and everyone else is werebeasts (e.g., wererabbits, wereleopards, werewolves, werecapybaras, etc)