The YouTube channel Classic Game Repairs fixes and restores old arcade units, especially those from the classic age and before. There’s a number of such things out there, but this is a whole channel of nothing but! Many of the units are really old too, like from the 70s. Those are a whole slew of games that are much in need of current-day love.
The video linked above is of Universal’s Mr. Do!, which is kind of like more-awesome Dig Dug. Most of these videos, I should make it clear, are not of gameplay footage, but of circuit boards and soldering irons, but that kind of thing is like ASMR to me. Maybe it will be to you too?