Good ones off the top of my head - Lord Infamous, Crooked I, Juicy J
Anything were someone uses the name of a mobster or "infamous" person in history is horrible like Skaface Al Kapone, Irv Gotti, Luni Coleone, Rick Ross, David Banner, and too many more to list. Come up with something original, fuck it my new rap name is Tony Soprano, lol give it ten years I bet you'll see one.