I wouldn't necessarily consider myself a "name nerd", though I do own this:

https://www.amazon.com/Gary-Gygaxs-Gygaxian-Fantasy-Worlds/dp/1931275564

I've made hundreds of NPCs across dozens of tabletop RPGs over the years, so I've had to come up with tons of different names for characters. Modern names, historical names, fantasy names, sci-fi names, comic book superhero names. Names from various ethnicities. Team names, organization names.

I know what a few names mean in their original derivation, though I'm not a huge expert on every name ever.