~Modern Au Part 2~
If you didn't do the first one,
It's fine. I don't really care.

The avatar exists still and pretty much there is tik tok involved and team avatar is famous.
Instead of having a firelord, the Fire Nation is going to have a very very very powerful businessman aka Ozai.....who is ruthless and needs to be torn down..

Pretty much this is a very very open ended topic, so it's up to you to make some scenarios since I've kinda got nothing except a few.

Ideas:
1) Tik Tok stuff like umm they do tik toks or something.
Idk you can make your own.