Year-round fresh peppers in my area include Jalapeños, various Bells, Poblanos, Habaneros (usually orange, sometimes red), long hots, and whatever these little pointy generic chiles are that the Indian/Pakistani market has. Also, Thai and Finger Hots are usually available year-round at the Korean Market. Other varieties sometimes pops up out-of-season (Serranos, and lately, Manzanos)... But I can't count on getting these each and every time I visit the market.
Obviously, these aren't being grown for commercial purposes in NJ, so they are coming from faraway warm places. The quality almost always seems worse in these winter months, FWIW, but I'm grateful to have them. Depending on the application, fresh is better than thawed out frozen pods.