From the IKCG
-Battle Chaplain: cleric of morrow prc, field medic
-Blackclad: dark druids
-Mage Hunter: elven assassins that target human arcane spellcasters
-Pistoleer: gun duelist
-Riflemen: sniper
-Second Story Man: break and enter specialist
-Warcaster: leader of warjacks in power armor(by the way very broken)
From Liber Mechanika
-Field Mechanik: Bodger prestige class, fixes jacks fast as non-spell like abality
-Ironhead: power armor class for arcane mechanik
-Preceptor of Cyriss: arcane or divine worshiper of cyriss, dwells on mysteries of universe
-The Mechanist:arcane mechanik drone manufactures
From Monsternomicon
-Adventuring Scholar: Indiana Jones
-Bone Grinder: uses parts of fallen foes to make craft items cheaper
-Monster Hunter: BIG game hunter, great concept in a world with CR20+ game out there
Hope that helps