The new X-59 demonstrator:View attachment 7212039
I loved watching them depart Miami International from the end of the runway or from Government cut... I was amazed by their small size when I drove my vehicle under the wing of one parked off to the side one day.
Not an SST per se, but a testbed for 'quiet' supersonic flight. No cockpit glass, it's all 'virtual' with cameras and screens. Just like fly by wire that's pretty unnerving now, but will probably 'just the way it is' in 10 years. Assuming there's even human pilots then.