(Psi)SeveredHead
Adventurer
I agree it is not just Drizzt. On the other hand, all the above groups are reasonably secretive (at least in the novels and games), so it is unlikely that any of the PCs will know about "good" drow unless they actually meet one.
Eilistraee's surface activities didn't strike me as particularly secret. I was under the impression that people know of them, but often don't believe them or decide to stay away "just to be on the safe side".