IT:
https://www.citationneeded.news
https://deadsimpletech.com/blog by @iris_meredith
https://soatok.blog/
https://ludic.mataroa.blog/rss by @ludicity
Solarpunk:
https://brightgreenfutures.substack.com/p/book-giveaway-solarpunk-activism
NSFW:
https://www.ohjoysextoy.com/ (not a blog per se but my feed reader can subscribe to their posts and it's really good)
