I have something like 1-2 dozen characters, so I'm just going to list the ones I play regularly. Otherwise I'd be writing a dissertation instead of working on my finals.
1) Sniper/Face - I like to call her a Face Sniper. She has 20 dice in Negotiation and Con as well as in Longarms (9 Ranks!). Other social skills are high, just not as specialized. Typically rolls with a Barrett 122, but has a whole arsenal in her Americar's smuggling compartment if she needs to change it up. Elf.
2) Face/Cyber-Adept - This started with me just playing with an idea when I was bored. They have four cyberlimbs (2 arms, 2 legs), Cyber Singularity Seeker and Redliner, specializes in Swords and Assault Rifles, and still has 16-18 dice for Negotiation/Con. Human.
Faces and Deckers (Techno or Mundane) come in at the lowest percentage at the shop where I play, so I try to make each character I make fit into one of those roles. I just haven't found a Decker that really called to me yet, so that's still floating around.