OP- New Hampshire is actually a pretty rough place to start out. Property values aren’t in line with “young professional” expectations, property tax is not in line with what you get (UNH is one of the most expensive in state tuitions there is, many NHers go elsewhere because OUT OF STATE there is cheaper than IN STATE here). NH doesn’t have a thriving [insert xyz] scene here. This isn’t and never will be eg Silicon Valley or the Insurance Hub or the Port of Long Beach etc. if you succeed here it’s often despite your NH location not because of it.

That said, the Quality of Life here can be absolutely fantastic. We have world class rock climbing, our ski mountains have forged the likes of Bode Miller (and our skiing is literally the cheapest in North America, fantastic value) people use winter hikes up the Presidentials to prepare for Nepalese ascents. There’s fantastic sailing and camping. You can surf and ski in the same day. If you factor in “quality of life” aspects I haven’t found a single place better (Switzerland is close, but still not even NH). As such you should think about what you want out of a move.

“Picturesque Quaint Mountain Towns” try Hanover, Lincoln and Littleton. If you go to Littleton, you will like it. I’ve never, not one time, had someone take me up on a trip to Littleton and come back disappointed

“Happening Hip Places” there’s no NH version of Richmond’s “The Fan” or Bawlmoh’s Federal Hill, so adjust your expectations, but I genuinely think Dover and Portsmouth punch way, way above their weight class. Walk around portsmouth, you’ll see for yourself. Wonderful beaches are just down the road, you’ll love it

“I gotta work in Boston Metro” Portsmouth is still a solid option but consider Bedford.

“My job requires I work in Concord”. Good news! Concord is actually cool! I think it appeals more to the 30 something crowd than the 20 something crowd, but it’s refined and fun. Also check out satellite towns, like Canterbury. C-Bury is full of eccentric hippy types who: raise yaks, have ayahuasca retreats, make maple syrup and surf boards from their timber stands. Hell, we had our own hermit up until recently!