Old sketch, any suggestions? (Patreon)

I’ve had this sketch sitting and gathering dust for over a year, maybe 2 idk I don’t remember what my plans were for it, but I kinda want to do something with it. Not sure what babe it should be, some parts may change depending on who it is. So then, do any of you have any suggestions of who it should be? Also like the cat tail can be changed to dog/fox whatever I’m not too worried about that part staying exactly the same. (It will keep the Petplay theme aesthetic)