Start here:
https://www.veteranstoday.com/2022/03/10/the-hidden-history-of-the-incredibly-evil-khazarian-mafia/
This is a redone older article but is still the best primer that I'm aware of.
After you've read and absorbed what is there, perform this <SEARCH>, bookmark it, and then take your pick as you go.
Much good information you won't find elsewhere.
https://www.veteranstoday.com/?s=khazarian+mafia