Lots of good stuff to paddle, Bruce Lessels has a guidebook, then I think someone came out with a hair of new england type book. Most depends on rain, but what doesn't depend on rain and is the goods is my favorite nation:
big-ass play to be had in Montreal- La Chine, Le Habitat 69 or 67 or somesuch, and if water is big, the Richaleau
Not to mention the rouge nearby with good playboating or stomping big drops through the seven sister
Ottowa is a bit further, but oh so sweet.
Middlebury VT has some park & huck, with some more stout stuff upstream depending on rain