Powerful. Strategic. Manipulative. Moral. Righteous.
Those were just a few words to describe the powerful family whom were bannermen to the Lannisters. Like most families; family came first. Also like other highborn families, certain members were forever craving power.
This would fit more into the canon of the GoT universe. The Mikaelson's (Elijah, Klaus, Kol, and Rebekah) would be human in this version. Mikael and Finn would be deceased because of the Mad King, and Esther/Freya were killed by a disease. Their personalities would be more or less the same and Elijah would be head of the household. This could take place at any point in the series. (Sorry for the vagueness. I'm leaving this open to discussion with whomever would be interested in writing a story.)
Klaus x oc
Kol x oc
Elijah x Sansa
Rebekah x Sansa
Jon x Rebekah
Dany x Rebekah
Ramsay x Sansa
Scenario two; -This one is more or less like the actual TO fandom but in the GoT universe.-
Each species has their own faction/land. Humans, wolves, vampires, witches; each fighting for more control. There's a human as the King but he's more or less a figure head and controlled by the vampires. The Mikaelson's are the most feared out of all the supernatural beings. Vampires fear them, witches hate them, wolves avoid them; and Klaus in particular.
The only hybrid known in existence is Klaus Mikaleson. With his unique nature, and being harder to kill, he is the most feared of all the family. What happens when another hybrid comes along? A vampire-witch?
Something as unique as that couldn't go unnoticed forever. Which was why Katherine kidnapped the girl and intended to use her to bargain and gain Katherine her freedom.
Kinks; Aggression, Dominance, submission, and whatever else might fit with these fandoms/canons/scenarios.