You do not have too take toll roads in NY
Take I86 which you pick up as an exit off I90 just north of Erie PA
Take that to I81 In Binghamton, NY
Go north on I81 about 2 miles and Pick up I88 to Albany
from there you can take I87 north and cross to Vermont where you please
Mostly rural driving.
I do not believe you will be happy the last 25 miles in Pennsylvania and through most of Eastern NJ. The traffic is a zoo. Once you get near NYC what is your plan to get to VT?
George Washington Bridge if you stay on 80/95 will have a $31.00 toll and you can be stuck in traffic through NYC for 2-3 hours.
You could take 287 N off 80 but that dumps you onto the Thruway and the tolls
Another choice would be to go from I80 in PA to I81 North and near Scranton pick up I84 but that puts you into the Connecticut traffic mess