https://www.theguardian.com/music/2025/nov/28/free-jazz-history-most-maligned-music
I'm going to try the albums mentioned in the article; at least, I'll try the albums that I can find without shilling out half a fortune.
Interesting books that are mentioned in the article:
* https://www.cafeoto.co.uk/shop/now-jazz-now-100-essential-free-jazz-improvisation/
* https://www.cafeoto.co.uk/shop/johannes-rod-free-jazz-and-improvisation-on-lp-and/