Here’s the list of WWE documentaries you can stream off Netflix:
WWE’s Top 50 Superstars
Bobby Heenan
The John Cena Experience
The Rise and Fall of WCW
Breaking the Code: Chris Jericho
Ricky Steamboat
Hart and Soul – The Hart Family Anthology
I strongly suggest the first two and Steamboat, especially if you can take the order of the first with a huge grain of salt.