I want to get into AA but I can't find any tutorials on it. Does anyone know of a good way to learn AA?

The best way is to watch people play AA. You can also join the AA discord: https://discord.gg/CdhTr7mY . There are a bunch of tutorials on the various advancements you can find there as well as they will help you out a lot. There is also this video from Feinberg which might help:

Oh and if you want runs to watch, it's probably best to go here: https://docs.google.com/spreadsheets/d/107ijqjELTQQ29KW4phUmtvYFTX9-pfHsjb18TKoWACk/edit#gid=735237004 and scroll all the way down and skim through the videos, or just watch feinbergs aa runs on his feinberg sucks channel linked above.

https://docs.google.com/document/d/18Iurqcqi3L6LujgMxjO15w66oM_8r5HnFwPNVGR9yk4/edit# Watch this