As far as mafia movies are concerned it’s all about the big three (GF, GF2, Goodfellas), with the Sopranos being the television counterpart. Not a big fan of other films/tv shows about la cosa nostra. Did like “Once Upon a Time in America” (full version), but that was about “La Kosher Nostra.”
The Sopranos made a lot of references to The Godfather. The most obvious was the final scene with Members Only Guy going into the bathroom to get the weapon, like Michael Corleone.