Ugh! caring about things sucks. (except for caring about friends, and even then, the line is thin)

Snape would be the best teacher, because he’s the best at the subject, but since he mistreated his students i say Barty Crouch Jr

Remus Lupin

Remus John Lupin (of course)

Definitely Lupin

I think Tom would have been amazing

Remus Lupin was the best at teaching, as well as just caring for his students. Barty Crouch Jr. as Mad-Eye Moody is a second since he mostly taught them very well, but he lacks the sympathy and understanding Lupin has.

Remus Lupine!Definitely Lupin

He is the best DADA teacher

Dumbledore. I mean sure it's fantastic beasts but Dumbledore is just so damn cool.