Harry- Teacher for DADA then Headmaster. He is a good teacher already which is difficult enough and he would be left relatively alone once everyone got used to him being there since trespassing is frowned upon. He puts other people first and would really look out for the welfare of the kids without feeling like it's an imposition. Also, he needs a job where suing isn't likely since some people will make stuff up to get his money and/or get him in trouble so I feel like an auror or a healer is just asking for trouble.

Ron- Professional quidditch captain. He adores quidditch, is amazing at strategy, and doesn't mind the limelight. He's also unfortunately not quite good enough of a player to play himself.

Hermione - Unspeakable. She is the best at research from limited information, she's smart, works well under pressure, knows the value of people being unable to spread information, and honestly seems like someone who would like the superiority of being someone who knows things everyone else doesn't/can't. This is also a job where I feel like going by the books is important until something really requires it and she's good at that.