Pasbs Qaa Goetia: Jade Compendium(Daughters of the Creation Goetia)
I've been thinking of defining the spirit familiar legions implied as notional constructs in the Ars Goetia.  There are a lot though.  Each legion consists of as many as 10,000 spirits as extensions of their ruling power.  For 10$ you can add a conceptualization to the list and for 100$ you can name a legion.  Just normal donations are also appreciated.  I'm starting with the 4 groups I'm already familiar with and will move on from there if I get enough support.  
Orias
Spheres of influence: Astrology, Astronomy, Favor from both Friend and Foe, Increases in Rank and Nobility, Transformation of Form
Aesthetic: Lions, Horses, Serpents
Legions: 30
Ose
Spheres of influence:  Liberal sciences, True Knowledge of Secrets and Treasures, Transformation of Form and Mind
Aesthetic: Leopards
Legions: 3
Marbas
Spheres of influence:  Truth of Things Hidden and Secret, Diseases and Cures, Mechanical Arts, Transformation o
The legions as I am defining them here are more like places than actual entities and are composed of 10,000 familiar spirits each.  It is basically an easier way of contextualizing the familiar being summoned more than just X legion of Y ruler.  Identifying the legion as more than just a shapeless mass of familiars also flavors how the familiars are perceived.  You could think of it like the planets from Homestuck.  I didn't really want to give an actual example because then I'm out 100$ but I'm going to use a legion of President Ose since he only has 3 and I don't really want to work with him.  

Ruler: President Ose
Legion: First
Name: Pit of Ederech

The pit is pretty much where nightmare fuel goes... That is the flavor.  That is 100$ I could have charged... I'm actually going to draw up a sigil for it.