I had a stats professor who told us to not buy the book. He would print out hand outs and gave them to us every class. He was super nice. One time a girl brought her bunny to class because she had to give it medicine on a schedule and he made her do show and tell lol.
I think practically it’d have to be earth. Water nation might not be too bad cuz u like the cold but idk about being surrounded by snow everyday of the year. Air nomad would be nice to have a sky bison but I’m not vegetarian and I don’t like tattoos.