A couple of thoughts/ideas on TS:
(sorry, if they are too obvious)
UNDERSTANDING AND EMPATHY
Eagle Eyes, Deep Listening and empathy scripting would be great for “reading the room” and your opposite.
Mirroring would be an universal, powerful concept for social connections.
A module for cultural understanding (with an universal approach: From national/regional culture, subcultural to microcultural level.), like a variation of TWTP for social/cultural chess.
UNSHAKEABLE CONFIDENCE
This would be IMO one of the most important parts of the whole sub, something similar to Synergy: Iron Law but broader. Noone should ever be able to tell when you are faking it - as in „Fake it til you make it.“ -, no matter which social circle you are thrown into.
FLEXIBILITY AND STRONG AURA
While Daredevil is an incredibly strong social sub, the archetype is very much fixed as the storyteller & adventurer that grabs the audience for a wild ride.
Being an overall strong social player would need to be more versatile and flexible, so adaptability would be quite important.
Ideal would be (I don‘t know if this is possible) an aura that mostly just intensifies the immediate connection to the people around you, like social magnetism and magnifying whatever you are projecting, ranging from the Heart of the Party to being just a good listener.
EDIT: Oh, and an Instant Spark variation would be great. Nothing is more important than the first impression.