O'Puledrone, a seafood restaurant on the Marina Grande. We had eaten there when we were in Sorrento about 10 or more years ago, and wanted to try it again when we were there last summer on the Best of South Italy tour. Here are some comments from my trip report: https://community.ricksteves.com/travel-forum/tours/best-of-south-italy-may-23-june-4-2022-tour-report
It's run by a fishermen's cooperative, the fish couldn't be any
fresher. It's a long steep downhill walk to the marina, so we allowed
plenty of time. We were glad we had reservations, because they were
packed. However, when new prospective customers showed up, they were
not sent away. Instead, they were given a glass of wine and told to
wait. When the wait time got pretty long, the waiters took pitchers of
wine to the people waiting! Gotta love it!
The food was as good as we remembered. I had an excellent mixed grill,
with amazingly tender grilled squid. Stan had swordfish, and kept
eyeing my plate. He said his was good, but mine was better. (We
usually split our meals, but I don't care for swordfish. I did give
him a shrimp and a bite of the squid.)
It was great, and if we're ever in Sorrento again, we'll eat there for sure.