Was conducting a similar search for arcades over on RetroCollect but this one is obviously more complete so I'll just whatever I can to this
People should start checking some of the smaller unknown bowling alleys that aren't part of chains, occasionally they have some good cabs. The one in Ilkeston, MFA, is a branded one but there's a Outrun 2 and After Burner Climax there, pretty sure there was one of the Time Crisis games.
All the cabs in Whitby mentioned earlier in this thread are all still alive and kicking, very surprised the original Sega Rally hasn't gotten the scrap yet as one monitor isn't right. Sega Rally 2 is still there as well, one side is set on Japanese bizarrely. There was also a deluxe Time Crisis 2 in one of them, projection screens still in alright condition but recoil only worked on 2nd player's gun. One also had what I'm certain is the first Daytona 3 in the UK. Both arcades had Walking Dead Arcade too.
The National Videogame Arcade wasn't very good when it first opened, I think all there was, was a bad Track And Field conversion, a repro Space Invaders and Donkey Kong + maybe a LCD fitted Neo Geo MVS, not sure if that one came later on. Now they're quite well stocked, there's a 4 player Turtles cab in amazing condition, a Tetris, Sunset Riders, Ms Pac Man, Time Crisis, Joe And Mac, Marvel Super Heroes, After Burner (upright), original Space Invaders (deffo not repro), a very shiny Phoenix cab that looked new, Star Wars Arcade Trilogy, OutRun 2 SP (upright) and Sonic Allstars Racing, along with the Neo Geo MVS and repro Donkey Kong I mentioned earlier. Would recommend a visit if you're in Notts.
Fantasy World used to be good in Cleethorpes but ever since it got resurrected recently all their good cabs went. The only vids of note there now are 2 OutRun 2 SP deluxes, and a strange cab I'd never seen before by Sega called Cool Riders, never released in Europe so I'd imagine not very common. I think there's a pic somewhere from 2015 from when someone broke in and you can quite clearly see a number of jammas lined up against the wall, turned off, took apart and looking sad. Can't find it right now but I swear I have seen something like that
Finally, I don't know if it's been mentioned yet but IOW's Arcadia, one of the last great places for vids has now been relocated and only houses a Time Crisis II and Sega Rally, which is a shame. All the cabs are in safe hands, the arcade op knew what they were and they all got sold on ebay.