There's a few others I've collected and heard of over the years.
I'm sure I've forgotten a few.
"Lockheed Test 2334" - several reports over the internet about a radio transmission about a classified, manned, high speed, high altitude craft performing a test flight and later vectoring back to the test ranges in Nevada with ATC making sly references to their return speed being slower than the test flight. Update in 15Nov22: This apparently was reported by Steve Douglass.
Steve Douglass' sighting of a manned fastflyer using radio callsign "Astrid" at the conclusion of a "Red Flag" exercise at WSMR flying faster than two other spy flyers, first a U2 then an SR-71. Circa 1997-ish.
Meinrad Eberle (and two other swiss nationals) sighting of a manned fastmover craft (at six in the morning on a weekend no less) at Groom Lake in 1999 along with radio transmissions.
"The Gaspipe Transmissions" - Another Steve Douglass report. Curtis Peebles "Dark Eagles" postulated this was security guards fooling around with the radio but security uses different frequencies for transmission than air traffic control and most security guards I know don't know or use ATC terms. They use different terminology.
The story of the Learjet pilot (reportedly an american astronaut) who found himself behind a wingless manned version of the "pumpkinseed" craft then transmitted about it to ATC and was later interrogated for hours about it by the military. That story always rang a little strange since you figure an advanced aircraft would know if a Lear would be tailing him. The story claimed the helmeted pilot turned in surprise, saw the Lear then fired the afterburners and was gone from the area afterwards. I still have the hand drawn picture of the purported craft.
The two stealthy VS/TOL prototypes I saw in outstate Minnesota in 1989 with some confirmation later from Jim Goodall of them being tested in the "Midwest and Michigan" and an airline pilot of my acquaintance discussed the area they were flying in as being used as a transit corridor for aircraft moving from one area of the country to another.
The story of the deep sea fisherman off San Francisco who found one of the "large black triangles" hovering low above his fishing vessel and shot at it with a shotgun whereupon a hatch opened with a man yelling "stop shooting at us you idiot!" followed by a military helicopter flying low over his fishing vessel taking photographs of the vessel and the shooter. Not a good idea to shoot at unacknowledged aircraft methinks. Expensive mistake but the fisherman apparently believed it was "independence day".
Any more that I've forgotten?
Oh yeah. The fast aircraft that flew late at night doing racetrack turns in Antelope Valley. I think everyone has seen the video footage of that craft doing a racetrack turn in a night vision scope with a much slower aircraft with strobes on in the center of the view screen and some guy filming it yells "holy cow!". I know it's up on youtube somewhere as part of a TV show "sightings". The person who filmed this later reported that this footage was used without their permission.
See:
https://www.dreamlandresort.com/forum/messages/44634.html
Interestingly, this video has been pulled from the internet after this was discussed. But I did find it again at its original source in a segment at about 16 minutes and 15 seconds of the old "Unsolved Mysteries" television show - if you see the Dreamland Resort post
the original person who filmed it discusses the details:
View: https://www.youtube.com/watch?v=2Lp1mkOXwRA
The reports of the stealth blimp at walking speed late at night in california.
Reports of very loud aircraft in the night skies in the late 80s in California as well as another aircraft that took off at Edwards late at night with a "screaming roaring takeoff" with the sound reminiscent of heavy lift rockets. That one always intrigued me.
The black triangular aircraft spotted at dusk out the window of an apartment building on the west coast of the United States that allegedly displayed a recessed cockpit and NO STEP insignia stamped below the canopy when viewed thru binoculars.
The Chris Gibson sighting in the north sea.