Daredevil? The first season of Jessica Jones? The first season of Punisher?
Generally speaking I think all of Daredevil is worth watching, and most of JJ and Punisher. Defenders was ok but overall a letdown. LC and IF, I never cared for either really. Both IMO were quality wise on a lower level than the other shows.
AOS was a nice attempt but it was hampered by being a network show with a much smaller budget and way too many episodes a season. It really tried to tie into the MCU the first 2 seasons but ultimately made the correct decision to do their own thing and only very loosely reference the larger MCU. I think it would have worked much better as a Disney+ show.