I see him as either a physcologist or a nurse.
I saw someone say he would run a non-profit for abused children and fell in love with the idea so I am stealing it.(I can not find who said it)
I also can see a teacher.
I don't get "being angry isn't in character and he will not get angry at Marinette" when Adrien has gotten angry a couple times throughout the show, like when things are really bad. I know at some point the fandom was saying Adrien gets so mad all the time because he would lash out. Didn't he try to kill Kim in Derision or when when he threatened Lila to lie to get Marinette unexpelled. Now in Heartfixer we have 100% proof that Adrien would get super mad at Marinette. Like I think people are starting to pull at strings.