A notable mention is https://ubports.com/en/ which is different from postmarketos in a sense that ubports uses old kernels with heavy patches. That means: good support for things, but difficult future.
PostmarketOS uses the newest kernels and tries to integrate their patches into mainline kernel, so that the reliability is maintained with all kernel developers.
It seems like Linux-compatible android handsets stopped around 2021. Except a few bespoke models that are hard to get your hands on outside of Europe.
I have a OnePlus Nord N10 flashed with Ubuntu Touch as a tinker device, unfortunately in the US it’s not daily-able because we shut down 3g and 2g networks and they still haven’t managed to get VoLTE working on Ubuntu Touch yet (though it may be coming in the next year!) so phone calls don’t work.
There’s also the Pixel 3a/3a XL which are plentiful and cheap but I like the N10 a bit more because of the additional RAM. Makes it feel a little less old compared to the Pixel.
If you can get your hands on a Fairphone, Pinephone or Volla those are great but hard to get outside the EU.
Sorry but the pinephone is not great. I have one and its extremely underpowered to the point of uselessness.
Its like trying to use a 486 to as a current desktop.
Are you saying I could get Linux running on my Fairphone 3+?
Mind you, yeah, 3G switch off would then make life difficult…
Sure. Looks like on Ubuntu Touch the only thing not working is the fingerprint reader
https://devices.ubuntu-touch.io/device/fp3/
The OS in general isn’t ready for daily use though. It’s maybe doable if all you need is text, calls, camera, and a browser. And the calls only work in some countries. But it’s fun to play with.