lesbian sex advice(anyone feel free to help!)

so me and my girlfriend have great sex, but i want to be able to pleasure her better. here’s our problem: i have multiple very obvious erogenous zones, and she doesn’t have any that we’ve found, so all of the pre-sex touching is often very focused on me. i don’t need help with the actual sex part, my question is does anyone know of less common erogenous zones i can try out with my partner? the issue is not communication, she doesn’t know where she likes to be touched either. anyone have any suggestions of things i can try to push the focus more on her and maybe find something she really likes too?