The sources, in alphabetical order:

http://boston.conman.org/

• Feed: http://boston.conman.org/index.atom
• Example post: http://boston.conman.org/2021/08/28.2

https://blog.danieljanus.pl/

• Feed: https://blog.danieljanus.pl/atom.xml
• Example post: https://blog.danieljanus.pl/2019/10/07/web-of-documents/

https://blog.rfmpie.com

• Feed: https://blog.rfmpie.com/index.xml
• Example post: https://blog.rfmpie.com/posts/internet-nostalgia/

https://cblgh.org/

• Feed: https://cblgh.org/all.xml
• Example post: https://cblgh.org/12%20pomodoro%20workday/

https://cmhb.de/

• Feed: https://cmhb.de/feed/
• Example post: https://cmhb.de/web-ux-design-is-broken

https://danluu.com

• Feed: https://danluu.com/atom.xml
• Example post: https://danluu.com/web-bloat/

https://drewdevault.com

• Feed: https://drewdevault.com/blog/index.xml
• Example post: https://drewdevault.com/2020/11/01/What-is-Gemini-anyway.html

https://gilest.org/

• Feed: https://gilest.org/feed/index.xml
• Example post: https://gilest.org/default-browser.html

https://herman.bearblog.dev

• Feed: https://herman.bearblog.dev/feed/
• Example post: https://herman.bearblog.dev/quitting-social-media/

https://iainbean.com/blog/

• Feed: https://iainbean.com/feed.xml
• Example post: https://iainbean.com/posts/2020/your-blog-doesnt-need-a-javascript-framework/

https://idle.nprescott.com

• Feed: https://idle.nprescott.com/feed.atom
• Example post: https://idle.nprescott.com/2020/simplifying-this-site.html

https://m15o.smol.pub/

• Feed: https://m15o.smol.pub/atom.xml
• Example post: https://m15o.smol.pub/the-healthy-web

https://macwright.com/

• Feed: https://macwright.com/atom.xml
• Example post: https://macwright.com/2020/05/10/spa-fatigue.html

https://manuelmoreale.com

• Feed: https://manuelmoreale.com/feed
• Example post: https://manuelmoreale.com/on-the-indie-web

https://nutcroft.com/

• Feed: https://nutcroft.com/rss/
• Example post: https://nutcroft.com/blog/the-ideal-blog-platform/

https://prog21.dadgum.com/

• Feed: https://prog21.dadgum.com/atom.xml
• Example post: https://prog21.dadgum.com/177.html

https://www.dampfkraft.com

• Feed: https://www.dampfkraft.com/index.rss
• Example post: https://www.dampfkraft.com/homepage-offer.html

https://www.datagubbe.se/

• Feed: https://www.datagubbe.se/atom.xml
• Example post: https://www.datagubbe.se/fleeting/

https://www.thisdaysportion.com/posts/

• Feed: https://www.thisdaysportion.com/feed/index.xml
• Example post: https://www.thisdaysportion.com/posts/indiewebish/