If you're tanned like me, Ash blond colors work pretty nicely (the one I used was cosworx's clover wig in 24), but they make you look a bit darker than normal. I have a feeling that light yellow-based wigs can also work but I'm not sure. They'll definitely make you look darker though haha.
The lighter you are, I think it's easier to pull off more types of blondes. Also, black people can look really good with any kind of blond!
What's this for? It's a wig.
What's it for? To disguise yourself from yourself.