Which route has more Lezdom?
The vampire one, but it currently has less dialogue content - a significant amount of eyecandy though. It unfortunately requires going through one unavoidable DIP (and no, D isn't for Dracul here) hoop unless you "cheat". Then again, I respect
Lord Dorian for turning a blind eye on his brides being frisky with each other and not constantly asking if he can put it in Mila (if you tell him off when he offers himself, he respectfully leaves you alone, which is commendable for a wise man with significant influence; in that aspect, he's much more tactful than, say,
Dealer, who ironically feels like a better character for me because MKRU built him in quite an astute way).
I recommend playing the main route first, keeping a set of saves until you decide to
face "Lord" Dorian, then converging from there. You can technically do
Dealer's "Simple Delivery" quest until right before
Alexandria Valdrake manifests, as will be reflected in a change of dialogue with
Dorian if you are too late and surrendering/getting rekt at this point will give you
a Bad End.
I would specify what exactly is involved but F95 seems to be touchy with mentioning/modding code in certain threads for whatever reason. Or this is just me being paranoid, which is very true and far from new.
Edit: Actually, I forgot about the pet system, though that doesn't really count as lesbian domination except for
Bianca's WIP path. It's wholesome yuri/GL with some real feels here and there, which is even better here. The option to turn almost every hostile NPC you meet does provide entertaining one-liners (and delicious art; yes, that's meant to be taken literally) though.