When it comes to strictly rap here it goes:

Mary Go Round - SPM
Lost ones - Jay Z
Dayz of our Livez - Bone Thugs
NY State of Mind - Nas
Just get Wrecked (C&S) - Chamillionaire
Doobie Ashtray - Devin The Dude
Mo City Don Freestyle - Z-Ro
Find My Way - Lil Flip
Hold Ya Head Up - Biggie feat Bob Marley
My Block - Scarface
Gin & Juice II - Snoop Dogg
Wanna See Me Gone - Trae feat Charley
Until The End of Time - Tupac
Charged - Twista
Ayo for Yayo - Andre Nikatina
Regulators - Warren G, Nate Dogg and Snoop

And quite a few more from each artist listed.