Some I like:

https://www.writesoftwarewell.com/ - very good software posts, mostly around Ruby on Rails.

https://crankysec.com/ - Cybersecurity rants mostly, fun to read.

https://www.wheresyoured.at/ - Ed Zitron's writings. Good counterpoints to all the AI hype these days.

These come up often on HN but I'll call them out anyway:

https://jvns.ca/ - Julia Evans, good technical content all around.

https://xeiaso.net/ - Xe Iaso, good technical content all around once again