>Just like there are small farming collectives out there, I'd love for there to be micro-magazines and short stories on paper, made cheaply and distributed to small mailing lists with a single stamp (not an email newsletter!). PDF versions available for long-distance readers.
You seem to be describing what I've known (since forever) by "Zine"[¹]
[¹]: https://en.wikipedia.org/wiki/Zine