Yeah, I've waited for years and I know that I can't get everything yet, but at least most.
XV272U, VG271U and AD27QD don't have strobing so they're out.
Even ignoring the 1080p TN options (plenty of those available) there's a few options.
Dell S2716DG, 27", 1440p, 144 Hz, G-Sync + ULMB hack works
ASUS ROG Swift PG278Q, same, but the PG278QR got 165 Hz.
ASUS ROG Swift PG278QR, Acer Predator XB1 XB271HU, Acer Predator Z1 Z271U, AOC Agon AG273QCG, ASUS ROG Swift PG27VQ all 27" 1440p, 165 Hz, hack works
Dell S2417DG, 23.8", 165 Hz, hack works
Acer Predator XB1 XB241YU, AOC Agon AG241QG, both 23.8", 165 Hz, should be the same panel so I'm guessing it works too.
I'd still have to choose between 24" 165 Hz and 27" 144/165 Hz (price difference, ULMB might not work >120 Hz anyway) and they're all TN panels but they tick most of the boxes. I'd actually prefer 24" (triple monitor setup and all that) but feel free to convince me otherwise.
Now it gets difficult:
Samsung C27HG70, 27", 144 Hz, VA, 1440p, but FreeSync + strobing. No idea how to get those turned on at the same time.
Samsung C24FG70, 23.5", 144 Hz, VA, only 1080p and the same "problem".
Also two more 1080p 27" 144 Hz options:
ASUS ROG Strix XG27VQ, VA, also FreeSync + strobing so strightly worse than the C27HG70 because it's only 1080p and otherwise got the same features.
ASUS VG279Q, the first IPS in the list, still FreeSync and 1080p at 27" is still meh.
Last but not least the 1440p 27" 165 Hz options:
AOC Agon AG271QG, ViewSonic XG2703-GS, Acer Predator XB1 XB271HU, ASUS ROG Swift PG279Q, Acer Predator XB1 XB271HUT, all with G-Sync, the hack should work, but all rather expensive.
There's also the Eizo Foris FS2735, but it's needlessly expensive for a FreeSync option.
So the first things to confirm would be that the hack still works and whether or not there is any way to do the same with FreeSync.
FreeSync + strobing at the same time > G-Sync + strobing at the same time (fuck vendor lock-in) > FreeSync and strobing separately > G-Sync
Also if it works I should probably look into ULMB at over 120 Hz. No point in paying for 165 Hz if I won't use it.
The new 24.5" IPS 144/240 Hz panels would be nice but I haven't seen any upcoming monitors with that and my monitor is officially dead now I think.
There are 24.5" 240 Hz monitors with G-Sync which implies ULMB, but i think they are still limited to 144 Hz ULMB so there's not much point in paying for 240 Hz if I don't use it and get worse colours in exchange.
If I were to tolerate not having strobing and sync on at the same then there's also monitors like the LG Electronics 27GK750F-B (240 Hz strobing + 240 Hz FreeSync, TN 1080p 27" though, but comparatively cheap).