I recommend Coco very, very highly.  See my review...

Venus from NYC is visiting Boston next week. Check out her ad on eros and her website. I've been with her twice and I can't imagine anyone better for a first timer. Beautiful, gentle and erotic as hell. She's primarily a top though which is how I like my t-girls.

depends on what you are looking for but Alexis is my favorite local girl that advertises...I've had more and more luck going to Jacques and meeting ladies there some if not most are not on the web and I honestly couldn't give you names.