(Comic above isn't mine, I found it randomly, and thought it was funny)

Freddy- Chihuahua  (idk if I spelled it right, but I don't care😂) (named Bunson,like bunson burner😂) 🐶

Jason- Bear (named cuddles)🐻

Michael- cat (like the og Michael Myers) (named Michael meowers)🐱

Bubba/Leatherface - pig (or horse) (named patches) (Probably has patches of fur or hair on it/them)🐷🐴

Ghostface- guinea pig (or hamster) (named Blade) (or if it's a hamster,  Ham)🐹

Pennywise- a random spider(and/or rat) he found(and named it/them webby and/or fluffy)🐁🕷