You might be surprised. My biggest trout was caught in tiny stream that is not even stocked.
I have fished the farmington and the housatonic but they are at the bottom of my list. I actually prefer smaller water and find those bigger rivers less attractive. Give me a moss covered narrow stream over those heavily stocked… well trodden …larger rivers.
The spot I got that larger rainbow is not a secret spot but I don’t name spots on forums. I am sure you have water close to you that are stocked with these sorts of specimens. I will message you some info.
That big stocker is fun but I actually take more joy from the smaller wild brook trout.