Apologies if this is a dupe, but I hadn't heard of it before so I thought I'd mention it. Concordia University of Chicago has an MA in Grant Writing, Management, and Evaluation that's ten courses for a total of about $15,000: https://gme.cuchicago.edu/online-grant-writing-management-masters/ That's a pretty good investment considering there's actually work out there for grant writers who know what they're doing -- and a lot of it is remote work, which suggests this might have better ROI for a lot of people than earning a degree in order to become an adjunct instructor.
My thought is that this would be a very good choice for someone who had a Humanities undergrad degree. Something like English or even a more Social Science sort of degree like Sociology. Marketable skills aimed at health/human services organizations. This is a nice find for some people.
Ever get the feeling like everyone else is talking about you, but are too polite to mention you by name?