Yes, The Dryway will be running the 4,5,6 and then the 12th. Absolutely head there, you will find plenty of people that can give you a heads up about the best lines, etc. If you haven’t been, its fairly short, so most people plan on at least 2 runs. Note that there is some construction happening on the side of the river near the put-in so access can be tricky on Fridays when they are working. Unfortunately, aside from heading to Maine, the rest of the rivers are natural flow. Likely to be running would be T-ville in CT and the Pemi Play hole at the end of the Pemi Bristol section. With rain, options like the West Branch Westfield (MA), West Branch Deerfield (VT), Bulls Bridge section of the Housatonic (CT) are pretty popular.

I would check the facebook groups Where’s the Whitewater At? and Merrimack Valley Paddlers, as they are more active than NPMB.