Another highly-technical blogger that I’ve enjoyed has been Ken Shirriff’s: https://www.righto.com/ Mostly focused on microcontrollers and vintage computing, but with other stuff mixed in (he did a great series in understanding the technical side of Bitcoin, although he’s definitely not a “cryptocurrency enthusiast”).
Yeah, but even there, he hasn't posted since August :( nowadays I think the only regular public activity is his participation in the podcast All the President's Lawyers - besides @Popehat on Twitter, of course.
Probably a matter of personal preference, but if you're not a fan of low-quality, intellectually dishonest shitposting in your feed, I'd avoid @Popehat on Twitter. I enjoy his columns and blog posts, but Twitter does weird things to some people's brains.
OTOH, my tolerance for that stuff is extremely low, so the SNR may suit someone else.
http://www.windytan.com/ - Oona Räisänen - great hacker of signal-related stuff (audio, video, wireless, etc), graphics, and more.
https://syonyk.blogspot.com/ - a lot of hacking around batteries, off-grid energy, and teardowns and repairs of various devices.
Non-tech related, Ken White at https://www.popehat.com/ can be quite funny, though he hasn't been posting as much lately.