I made an Amino post, y'can view the full thing here. http://aminoapps.com/p/tfn1d6

Duelist - Saber (not a rapier there's a difference) - Knights
Assassin or hybrid, would be dodge/parry heavy, fast and hard hitting, primarily counter attacker dressed all nice like a noble (gotta get them snazzy clothes my guy) would be very precise and counter attack heavy, maybe incorporate a sort of parry punish where you strike with the knuckle guard to stun the opponent, maybe get a free light or zone off it. Endless possibilities.

Bodyguard - Montante - Knights
Heavy or Hybrid, would have Hyperarmor but sort of slower attacks as a result (for speed I'd say think of Warlords attacks minus the enhanced lights), sweeping strikes like Kensei, spinning animations similar to Zhanhu like the irl fighting style, should have a very good anti gank kit as the weapon and fighting style was designed to take on more than 3 targets at once.

Example Videos for Montante;
https://youtu.be/Fp1Gsh5W4vs
https://youtu.be/pYXuNuXA5WU

Example Videos for Saber;
https://youtu.be/Z19hR04Ckb8
https://youtu.be/n5w2Mh6CyXo