There are AFAIK:

Original TNR 1.06 - for Vanilla + SI

TNR COBL Races

Not sure if there were Corepc versions of these...

bg2408 TNR Faces integrated within Race Balancing Project

Which set to use?
Which one would you recommend? As most diverse and aesthetic?

If I did not have Integration installed, I would go for the Cobl version of TNR. I dislike the occasional random usage of the more outlandish 2Channel haistyles on NPC's.- apologies for mispelling or misnaming the haistyle mod merged into RBP.