jbelljitsu - There are a bunch of options for you it all depends on what you are looking for. I'd recommend trying a bunch of them out and then deciding from there. In no particular order here are the schools i would check out:
Royce Affiliate in Glastonbury - Doug Gallant - long time practitioner with the added bonus of excellent stand-up game. also has a nasty purple belt in Dan Durkee with a div 1 wrestling background.<
Plus One - West Hartford- gigantic and gorgeous facility - Gabriel Gladiator Santos runs the program and he is an excellent black belt with MMA experience. Also you have black belt Bruno Lichenstein and Luis Rosario who is an incredibly talented brown belt who virtually lives jiu jitsu. The owner Darin Reisler is also a very technical brown belt.
The Cage - Rocky Hill: another big beast of a school with a phenomenal black belt in Danilo Cherman
Underdog - West Hartford: appear to be focused (and successful) on competition, both bjj and mma. at least 3-4 black belts that I'm aware of though I believe the head instructor reigns were recently passed on as I heard that Fabiano left. If accurate the remaining instructors are all still very good.
Of course there is also my school, Gracie Farmington Valley, which as the owner and head instructor I'm happy to recommend:)I should also note we are about 50%/50% gi and nogi
whichever way you go you'll receive solid instruction and have a fair number of other talented students to train with. Again, visit them all and make an informed decision. There are also a host of other schools a bit farther outside of Hartford you should at least consider traveling to:
Bushido BJJ in Mancehester
Soulcraft in Hamden
Macarra BJJ Norwich
Macarra BJJ Colchester
Gracie Sports Norwalk
Giroux Bros in Glastonbury
It's unreal, the quality of BJJ in CT.
I train at the Cage currently, but have trained with almost everyone on this list. Any of these schools will be great. Brad was my first instructor.
I want to add in New Haven is Carlson Gracie CT with Fabio Araujo. 3 stripe black-belt.