I can help with this as well. I will need the person asking for a D20 profile to tell me what classes they would be.
Here are some of the base classes.
Non force users
Scout (D&D Ranger type). Good with expolring and space ship operations. Chewbacca was a Scout.
Soldier. Tough and well traind in all weapons imaginable. Tough and resiliant. If you wear heavy aromor or powered armor. Your prolly a soldier (Boba and Jango both started their careers as soldiers).
Scoundrel. Han Solo and Lando Calrisian were both scoundrels.
Noble: Padme and Palatine both started out as nobles.
Fringer: Great with skills. Anakin started out as a fringer.
Prestige classes
Bounty hunter
Elite Trooper (special ops commando)
Crime Lord
Officer