I thought I'd provide a look and reminder of where factions stopped a while ago. I wouldn't consider the list complete as there are subdivisions I'd like to make, but the major groupings are all there.
Elite; All upper echelon types.
Learned; All Scribes, Clerical, Bureaucrats... Your 'office workers'.
Entrepreneurial; All Production and Business related.
Craftsmen or Skilled; Artisans, Sword Makers, Armourers etc.
Spiritual; Monks, Priests, Philosophers,