I have been to Hill a couple times, so I was looking to go elsewhere this trip.
I love barrel aged saisons and sours. I don't mind stouts in the winter. I like hazy IPAs because I cannot get them in Kansas City.
I have loved all of the Tree House offerings I have tried, but I visit Side Project frequently and love DeGarde.
Ok great!
With that said, here are (IMO) some good options for breweries you have to try in CT.
Sours/Belgians
OEC (sours) - they only brew sours here, but people who like sours rave about them
Kent Falls - a farmhouse brewery with a mix of farmhouse ales and IPAs (some hazy)
Overshores (Belgians) - They used to be an all Belgian brewery, but have since changed over to Belgians and a Gypsy brewery location...meaning that other brewers now use their space to brew their own beers. You will find some of their Belgians as well as other brewery IPAs/Stouts/Sours on tap
NEIPAs (hazy IPAs)
New Park Brewing (really good IPAs and also make good stouts/sours when available)
Fat Orange Cat - around 8 beers on tap, with 6 of them being good hazy IPAs. Also have cans to go
Fox Farm Brewery - usually have 2-3 hazy IPAs on tap as well as a stout and farmhouse ale
IPAs
New England Brewing Company (NEBCO) - makers of Fuzzy Baby Ducks and Gandhi Bot...nuff said. They usually have around 10 beers on tap (8 IPAs). Also make some good stouts ie Imperial Stout Trooper
Counterweight Brewing - (former brewer at NEBCO) good IPAs, stouts and a pilsner
Beer'd - good IPAs and some stouts
Relic Brewery - small place but he makes good IPAs (some hazy) and some Belgians when available. Also has an extensive list of whiskeys and bourbons to try
5 Churches - good IPAs and pretty damn good house made brick oven mini pizzas
Destination breweries
Two Roads - largest brewery in CT (our mini Sam Adams but with better beer), huge Tasting Room and tours
Stony Creek Brewery - really nice location right on water with outside seating....but beer IMO is meh
Kinsmen Brewing - pretty big beer hall (think octoberfest) with pretty good beer
This is not an all encompassing list by any means (I'm sure I missed a few), but with soo many breweries in CT (I read we have around 65 now) these are the ones I would check out.
Also they are spread out all around the state (with various hours) so I would check them out on a map to get an idea on where they are all located relative to one another.
Hope this helps and let me know if you have any questions!