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.
Check out the Fairphone 5
Good specs for the price. No headphone jack tho.
True, but replaceable everything. And as sustainable (environmentally and socially) as smartphones come.