Big, Pac, Jay-Z, Nas, Yeezy
Biggie & Pac for obvious reasons.
Jay-Z for being the leading earner/culture-pusher in the commercial/financial realm & damn near everybody's "pops" when it comes to who they want to get money like, be consistent like, or have influence over a culture like.
Nas for being the leading "concious, technical, & 'picture painting'" figure. --> Cats like J. Cole, Wale, Kendrick etc. are his offspring.
Yeezy for being the leading "different/weirdo/genre mesh" figure, and also bringing great/innovative production to the game. --> Cats like Drake, & Drakes offspring, and a slew of up-and-coming producers are all his offspring.
Would've added 50 but he's more or less offspring of Big & Pac, so it goes without saying.