This article is not entirely accurate and is a work in progress
Rappers with "Affiliated" next to the set means they grew up in a set controlled block or connected through other rappers who actually repped a gang


WESTSIDE
Kendrick Lamar- Blood(Affilited)
ScHoolboy Q- ´52 Hoover St. Crip
Jay Rock- Bounty Hunter Blood
YG- Tree Top Piru, 400 Block
Tyler, the Creator- Crip
MC Eiht- Tragniew Park Compton Crip
Eazy E- Kelly Park Compton Crip
Ice Cube- Crip (Affiliated)
Ice T- Crip
Snoop Dogg- Rollin 20 Crip
The Game - Cedar Block Piru
Compton Menace - Fruit Town Piru

SOUTHSIDE
Z-Ro- Mo. City Crip
Pimp C- Crip
Twisted Black- Murda Worth Crip(I'm from Murda A.K.A Fort Worth, Texas.)
O.G. Bobby Johnson- Crip
Deniro Farrar- Crip
DJ-Screw- Mo. City Crip
Three 6 Mafia- Crip


NORTHSIDE
A$ap Rocky- Crip
A$ap Ferg- Blood
A$ap Na$t- Crip
A$ap Twelvy- Crip
Cheif Keef- Blood
Fredo Santana- Blood
Lil Durk- Blood


Some rappers are essentially fake gang members, and only really "rep" a certain gang through association with famous gangsta rap artists, for example:
Lil Wayne through artists like YG 400
Chris Brown thinks he's Fruit Town Piru