what ever happened to phonebloks
phonebloks was more of a "hey here's this concept we think would work" not an actual project. then google with their "project ara" started collaborating with them and took it from there.
except they completely neutered the entire concept and reason for modular phones, then shelved the project. If you're still interested in modular phones, Puzzlephone seems very promising, but they don't seem to be very active or well-funded.
then there's the Fairphone, but I think everyone's already familiar with that. maybe.