Purism?
Another potentially serious endeavor is Purism's Librem 5 (pre-prod, due out allegedly this quarter). I was really excited about Sailfish when it emerged having had a Nokia N9 (still my favorite phone) but was disappointed with how things panned out for the US side.
I do understand that it's a tough market though but it always amazed me how many people threw around the number of apps in whatever app store. Most are wrappers for a website. I don't want or need extra stuff whose only real purpose is extra telemetry.