People who know their hair! what type of hair is best suited for caucasions for a full lace wig?

I see so many, if it says silky straight which is what I want (the one I have now is body wave and I hate straightening it i just don't look good with curl to me) then is it always the same type and if so what kind is it? my hair still need time to grow back so I need a new one. any good websites and companies anyone knows of?. I've seen indian chinese malaysian etc on and on, I'm a little confuesd on this one anyone help/