While on the way to other things (looking for a Martha Wells book), I noticed that the short story collection, Take Us to a Better Place, is free in English and Spanish (Llévanos a un lugar mejor), both in the US and the UK. It’s themed around “well-being and the future of health and the planet” and includes stories by Wells and a couple of other authors who were familiar to me. The (few) reviews are pretty good too, FWIW. Oh yeah, and the blurb indicates it’s free due to sponsorship from the Robert Wood Johnson Foundation.
Oh yeah, and the audiobook is free at Kobo US too: https://www.kobo.com/us/en/audiobook/take-us-to-a-better-place-1
I didn’t find it at Kindle or Audible, although I’m not great at audiobooks, so someone else might have better luck.