yeah, they is for sure worth checking out.
mixtapes will be the best bet.
i can't even think of whats easily available.
funkmaster flex is about all i can think of.
major flavours has some things it calls
'freestyles' but i've strong doubts about a couple
of them actually being that.
sway & tech have a wakeupshow cd but i don't remember what it's called. but at the end they got some mad freestyles from chali 2na, canibus, sonia blade & some others who i can't remember.
peep any of funk flex's mixtapes for REAL freestyles.