What are some classes that I can take to study lions?

I mean like I would really like to become an animal trainer some day and all and i'm really hoping that I do but also maybe even become a herpetologist as well because I would really love to train animals and study reptiles and amphibians too "maybe?" but I would "mainly" want to study my favorite animal of all time the "LION" I would love to become a lion researcher, lion behaviorist, lion psychologist, lion trainer, lion tamer, or anything that has to do with lions lol, I want to tame, train, and study this cat so much lol, what are some classes that I could take to study this magnificent big cat.