Thanks! I'll check those out. I have Wars of Reaving, but not any of the others. How likely is an alliance/working relationship with the whole clan, or are they broken into subfactions like the mandrills? Does one of those books go into more detail about their organizations structure, especially Jihad and Dark Age era?
The novels hunters of the deep and to ride the chimera go into a bit more detail. But only of the free world's league Spina Khanate.
Era Report 3145 and Field Manual 3145 talk the most about the Sea Foxes.
Each Aimag is seperate. There are differences between Khanates and Aimags.
But they are still Sea Foxes. If you are a good customer they are going to be friendly.
Keep in mind there are lots of epithets in the Dark Ages about how likely people are to become trapped by Sea Foxes.
If you read Hunters of the Deep and To Ride The Chimera, or even the small moment they show up in that Jade Falcon book by Milan they are pretty friendly though...
Just know that any interaction with them will cost you something. They'll be upfront about what it costs unless you cross them. Then they'll take whatever they can and give nothing back.