It's a few months out, but try going to Tethered Together in March. It has classes and will give you the chance to meet people.

I used to help run one of the local TNG groups and recently spoke with another person who used to as well. Unfortunately most of the events (Rope Bite, Waltham Rope Night, most of the munches) haven't recovered from the pandemic. FetLife will have the most up to date information on those groups.