If your serious about migrating North.. do NOT settle in NH lol. No sales tax.. yeah.. but property taxes are absolutely 100% batshit insane. I have a buddy who lives in Sandown.. under an acre lot.. 900sq ft house.. 10,000 dollar tax bill a year.
My mother has 5 acres and a 2k-ish sq ft house about 20 minutes north of Portland and she pays HALF of that. My best friend has 20 acres and a trailer an hour north of Portland and his tax bill is 800 a year.. another buddy has like 40 acres and a log cabin a little east of bangor near the coast and hes only hit for around 2k a year..
I'm not sure how expensive Vermont is to live in... But it's certainly a beautiful state.. and it's pretty even as to how far north it is compared to NH so.. mabey that's your ticket.