I have discovered a female voice actor, alekirsergwa, she's also a R18+ vtuber, high pitched voice. Here's her voice sample,
https://www.pornhub.com/view_video.php?viewkey=668d94803206d
Her commission pricings,
https://docs.google.com/document/d/1WnQFOxIYsJtrZtgeJlMUOC0KijsTp6nGv2lLaq07i5I/...