Potioneer.

Quidditch player, Auror, or Professor. Maybe a Magizoologist

Magizoologist or proffessor, definetally - I would not be a good auror

Auror or quidditch player

Magizoologist and auror. I would travel the world to defeat dark witches/wizards and while doing that discover all the animals living in their natural habitat (of course with a nice suitcase.)

Potioneer and Author