There are a lot of great suburbs that still have good access to Boston. One question I'd have is whether you will prefer access to Boston by train or by car. A lot of towns have both, but it will help you narrow your search. Also think about how close to Boston you want to be and set up a radius. You say you want a fair amount of land, just plug in a search with filters for lot size and everything else and see what you can get. I find that 93 South of the city commute sucks these days, but there are several train options.