Jeeze, I honestly don't know what's open right now. We're kinda tied up with this pandemic thing and all and it's put a serious crimp on things like bars, pubs, brewery tours and all. I was hoping to check out a big chunk of automation at Wachusetts brewery last week but they weren't having it - best one could do was a drive-by crowler/growler pickup. And I'm pretty sure none of the beer gardens ala Treehouse or Trillium are open, either. Both are drive-by pickup only as well right now.
I see the Sam Adams Jamaican Plains brewery is open for tours/sampling but the conditions are tight - reservations for sure, small groups, short-ish stays. Under normal circumstances it's a good time; not so sure about that right now.
Bottom line, get your best Google-Fu on...
Cheers!