I'm basically a "switch" when it comes to sharing. I like the idea of getting cucked, of being more dominant where I basically control who, when, and how she fucks, or in the middle (threesomes, etc).
You could look into Stag & Vixen or just plain swinging/swapping. Not sure if there's a name for the man being dominant while sharing his sub wife. For whatever reason, the cuck kink just dominates when it comes to porn and online kink culture.
I do really like the idea of being dominant and basically humiliating her instead by turning her into nothing but a fucktoy for other guys for my entertainment. I also really like when she takes control and dominates me mentally and emotionally too.