Hi:
I know of three somewhat regular recurring M&Gs in our area:
There is usually one based in CT that gets advertised from time to time that's usually well attended it appears. I haven't been to it, but it draws many CT ladies and some MA and NYC. As we know, RI is a little less well represented. Seems to be 2-3x year.
There's another based in Boston that draws a similar circle of ladies as the CT one. Both are advertised on the M&G board with good notice. Same sort of frequency.
The third one is the one hosted by Chloe Harper in Boston. She had two this year, I went to both. The draw is more in line with Chloe's circle and tends to be Boston/NH based with less a CT presence. Chloe's friends are all some really top ladies in Boston, like BostonMeg, BostonAlex, Kristen Lee, Erica Sweets, etc. She invites me via email. But I think she advertises it on the m&g board and also does on her website.
Full disclosure, I'm a "regular" with Chloe if you will.
I wouldn't expect one until early spring timeframe. Need to survive whatever frozen hell of buried in snow this winter brings. They appear to be a lot of work to put on so I surmise nobody wants to play roulette with the weather gods and risk a snowstorm on the day of the event