No idea about Boston, but I hung around with a lot of goths growing up in the UK and dated quite a few.
As a gross generalisation, most goths are generally very nice, intelligent, middle class people who're trying on a persona, sometimes to mask severe self esteem issues and a desire for attention. They tend to be very cliquey and will often reject people who don't live the goth lifestyle (despite claims of being very open minded).
Goth girls are fun but expect a lot of drama, and trying to get someone to stop cutting themselves/taking drugs far more often than is healthy/threatening suicide is a huge mental drain and futile if the person doesn't want to stop.
It might sound like I'm being a bit down on goths, but I'm just stating what I observed from a number of years on the outskirts of that scene. Some of my best friends are (ex-)goths
Keep an eye out for EBM/Industrial nights in your city or goth-oriented fetish nights (as opposed to swinger-oriented ones which tend to be full of middle aged wife swappers). Also, anime events and screenings of cult goth movies like Rocky Horror or Tim Burton films. Be 100% open-minded about absolutely everything except what is perceived as "mainstream" (evil corporations herding sheep around). Learn to enjoy things for the sole reason that they're different/unique, even if they actually suck in every other way.
Be aware of the vast range of goth cliques (cyber-goth, trad-goth, etc) as they're very different in many respects and there's quite a bit of rivalry. The bigger your city the more splintered the scene will be.
PS. As I got older and wiser I realised that the cool girls I wanted to spend time with weren't the PVC-clad club divas but the toned down, semi-goth nerd girls who mostly hung out at the back of the club talking to their friends. These girls are smart, different, sane and offer most of the benefits of dating the goth club divas with few of the drawbacks.
PPS. If you have no interest in following the goth lifestyle yourself, posing as a "fetish photographer" is a surefire way to sleaze your way into god-like status in most local goth scenes and requires no qualifications...