The Pacific Pinball Museum in Alameda is open daily as far as I know.
Big places like this can be extra-tough to keep up to date, because it's takes more work to crosscheck between the map and what's actually there. Some of these locations are actively kept up to date by the owners/operators. That's the way to go, because they know what's coming in and out.
Also, the Krakow Pinball Museum was just submitted today. Haven't added it yet, but it has a lot of machines.
I live within driving range and have been there dozens of times...
Also, it be tough to keep that location up to date on the map!
For now, we have a link here: https://pinballmap.com/la/about
https://pinballmap.com/bayarea?utf8=%E2%9C%93®ion=bayarea...
It is sometimes closed for private parties (highly recommended), so you should double check the website before you go.