Lots of clubs around you between CT and RI, but definitely none close. RIBS in Providence is a great club. But looks like the closest club to you, if you look at the link of clubs is Boffin Brewing in Waterford CT...but some of these clubs can literally be 2 guys brewing together.
As for starting a club, the AHA is a great resource for info. https://www.homebrewersassociation.org/homebrew-community-culture/starting-homebrew-club-scratch/
One key is if you have a homebrew shop in your area that will let you post flyers to try to get members, and maybe even let you host meetings there.
My club in Mass, the Mash Holes, started in 2014 because a guy that worked at the local homebrew club could not get into the bigger club in our area, South Shore, because they have so many members they are not taking new members...so he posted a flyer at the shop and next thing you know, we had a club, a name, a club charter, 30+ members and within a year were running a homebrew festival for charity. Before that, my old club was just 5 guys that got together for brew days once a month.