The Age of Innocence. Initially seems world away from the violent worlds of others but it is savage in it's own way. The Countess
Goodfellas
The Wolf of Wall Street
Casino
Shutter Island
Haven’t seen the recent Irishman yet
The Departed and Taxi Driver are top 2. WOWS not far behind.
The Departed
Taxi Driver
Wolf of Wall Street
Goodfellas
Raging Bull
That’s a competitive list for best top 5 of any director