The New England Region of Narcotics Anonymous can be found here: https://nerna.org/

The Northeast Zonal Forum is the Zone in which the New England Region falls, their website is absolutely and excellent resource for service and learning and can be found here: https://nezf.org/

And the link for the Fellowship Development page of the NEZF is https://fd.nezf.org

And of course, we can't forget about Narcotics Anonymous World Service (NAWS): https://www.na.org/