Not sure where in NH you are, but 2 years ago I was where you are now.
I think the best starting point would be to go onboard some boats that do long-range cruising, and talk to the owners.
I'm in the Seacoast NH/Southern Maine area. PM me on this forum and you can stop by my marina and we can chat.
You'll have to form your own opinions on number of engines, gas vs. diesel, and what brand of anchor. My recommendation is to not make any of these a show-stopper based on anyone else's opinion.