Since I finished graduate school (statistics), I have been pursuing research. This is on my own time, separate from my work in industry, and while my company does not interfere with my work, they give no financial support.
I now want to publish a paper in an open-access journal. (I know to look out for predatory OA journals, and the ones I'm considering definitely are not.) However, the open-access fee comes straight from my pocket and is not a trivial amount of money.
What could an independent researcher like me pursue as a funding source to cover the OA fee?
I did find this question, but I am interested in the OA fee in particular, not compensation for the work in general (wonderful as that would be).