I'm going to go on a roll here and say that everyone should want to be my friend. My kingdom is rich and they are building colonies while having a sexy food surplus and no religion contestants. The world around the Arcosiceni know that the elves are prosperous people, and don't have any idea about the rivality of their leaders.
I think I'l start with a lot of personal posts about the royal families and such, touching the colonies briefly while I keep asking the empire for the south central reghion of Arken. If I somehow come in touch with the covenant or the ironborns I will be diplomatic and all. I should already know about Derath(since he's been part of the empire) and we should already trade, same goes for the supremacy. But you guys should want trade with me, since I'm so rich and all.
Also, I'l try buying a lot of things from other kingdoms, including rich lands and foreign tehnologics.