In my neighborhood there's an Episcopalian church that, until COVID, provided spaces for a Zen sitting group and a yoga studio. I don't know if that's common practice or the work of an enlightened priest, but that might be another option to explore. Although opening up to Epicureans might be beyond the pale!
Your mentioning of such a church reminds me of the Unitarian Universalist churches, so I wanted to mention them here to add onto the potential spaces for in-person meet-ups.
While it's also true that some churches are friendly to hosting group meeting for alternative viewpoints and beliefs, your best bet to contact and ask would be Unitarian Universalist churches. This branch of practice is highly eclectic and, though historically from Christianity, has become a church of many different faiths and beliefs including Humanists and Atheists! Due to the eclecticism of the congregations, they're basically open minded and pluralistic community churches.
Sounds like a contradiction, I know, but there's a long history behind that. Too much to put here.
So if anyone is near one, they would be some of the first to reach out to to see about establishing an Epicurean group in person!