Oh I'm all for harem routes.
My idea for a golden route, I already posted it a while back, was have Jinora dominate Korra. Since she is jealous of Korra, her solution is to only accept Korra as a pet. Although that would have been better in the slave route.
But I can't really come up with anything good until the relationship with Jinora is properly fleshed out.
I just really want to see some quality time with the family. Jinora, Ikki, Pema, Katara. And by quality time, I mean sex. The more taboo the setup feels, the better.