Did you say whether she is working right now or is she full-time in the job search (without a paying job)? Perhaps she should get on the substitute teaching list at schools near her place of residence. With her interests and her level of education, I’d think she would be a great sub, and at least until recently they were in short supply. It’s work experience: a real workplace with real responsibilities, and it wouldn’t necessarily be every day, which leaves time for museum networking.
ETA I think you said she was still in school…so maybe this idea is for after graduation, sorry!