I'm working on and finalizing a simple card based (pen and paper supported) fantasy RPG that is designed to move fast and not be bogged down by endless rules on minute details of everything.
Here are some adventurer classes I have used and designed into games. Some borrowed and modified, others made up, all can be interesting:
Abbot
Agent
Augurer
Botanist
Buccaneer
Charmer
Clairvoyant
Commando
Curate
Dreadlord
Demonlord
Dragonlord
Elder
Enforcer
Functionary
Fugative
Genius
Guru...