What about the Nazguls in the Nice!Sauron AU?
What's up with them?
They're not alive.
To be clear! Most of the Nazgul aren't Numenorean. Khamul, Indur, Ren, Uvatha, Dwar... they haven't even been born by the time the One Ring would have been forged. For some, their parents haven't even been born. The timeline prior to the creation of Super-Evil-Fucked-Up-Ring!Sauron is unchanged, and the variations resulting from its creation are really only seen a few years after that.
But their lives are not pleasant when they are born. There's a reason each of them took a Ring, or even sought it out on their own. None of the Nazgul were just Powerful Men seeking more Power. They were desperate people trying to defy the fate they had found themselves in. In the Nice!Sauron AU, the elves still keep the Rings of Power. If the elves keep the Rings of Power, there never are any Nazgul to begin with. The Men who would have become Ringwraiths never grasp the means to rise out of their misery.
So they die. They die young, they die tragically, but they all die.
