Lilium's [1] aircraft has multiple rotors but tilts all of them when transitioning into horizontal flight. From what I understand, [2] is an actual video of a flying prototype, not just a good render video. The Coming 2025 at the end of the video sounds scarily late, though.
That's definitely one I hadn't seen before. Unfortunately I'm not sure if I'm allowed to be specific, but I have direct experience with another vehicle that makes me skeptical that that thing will gain regulatory approval.
[1] https://lilium.com/
[2] https://www.youtube.com/watch?v=mjAJWrraTKs