My wife carries a G43 in her gunpurse, and another in small fanny pack while hiking and exercising outdoors. We're taking a training class soon and I want to surprise her with an OWB holster for the class.

I've tried to convince her for years to switch to an on-body holster, but she's curvy enough the "high and tight" way that typical holsters fit force the grip of the gun into her ribcage. She also rarely wears a belt. I'd appreciate feedback on holsters you or someone you know have used that are designed for a woman's shape and are comfortable to wear, secure and well built. I'd prefer to avoid buying a drawer full of holsters for her as well!
Thanks!