My niece is a pretty good guitar player and singer already, and has her own taste in music that I'm not going to disrupt, but I want to introduce her to some underrated cool guitar players she can check out. I'm not thinking about amazing virtuoso guitar players, or old school artists, but sort of newer hip guitarists so she can see what some women are currently doing in the music scene.
I already recommended: Tash Sultana, Jessica Dobson from Deep Sea Diver, & Brittany Howard from Alabama Shakes. I can't really think of anyone else at the moment.