Alpaca is a good choise because i hope it will be the biggest wild animal, and pretty cute ofc. Just imagine glitches riding Alpacas ^_^
But Fox is like another Piggy, only red. Little animal just walking back and forth on the flat ground. I believe we have enough piggys already.
Sloth will be much more interesting. Maybe they will climb on trees or something. Also Sloth cubimal... it gonna be sooo awesome!