A new race: Vampires.

I won't be able to play if Vampires are neutral; where will I buy them?

Firstly, you can't buy vampires, only hire them. Secondly, you can create a dwelling where they can be hired. The main thing is that it shouldn't be in a castle. We are truly neutral in our essence; each vampire, at best, believes in the gods they choose themselves, and more often, vampires are atheists. So, they don't belong in any castle. And werewolves are also good, and as neutrals, they are simply necessary, IMHO.