It's significant that you slept in Ravello and liked it. Ravello is quite far from any beach, and is very quite (except, presumably, during the annual classical music festival.) I don't care for pebble beaches, and I didn't care for Positano, because it was so oriented to luxury shopping and nightlife.
Sorrento (which like the actual AC towns, books up completely six to twelve months in advance) is a purpose-built, postwar resort town, with mostly newer reinforced concrete buildings, two stories tall - except for the largest hotels. One hotel reportedly has a private beach, but otherwise, Sorrento only has one, trucked-in sand, public beach. It is located at the foot of the town elevator, directly between the two marinas. It is TINY, and smells of diesel fuel from the marinas.
That said, we loved our cliff-front, luxury hotel in Sorrento for five nights (Ambasciatori), which had boardwalk (not "floating") private swimming platforms in the Gulf of Naples, reached by the hotel elevators. The real reason for staying in Sorrento is for convenient DAYTRIPS. It is an even better transit center than Amalfi or Salerno, because the ferries are closer to "the islands", and the docks take bigger ferries than, say, Positano. It's also possible to get to Pompeii Scavi for two Euros or so, on the gritty, hot, commuter train.
Your OP is not quite detailed enough, but it seems like you don't care about beaches, and want either quiet or "rural Italy" (which I imagine is hard to find in this location (!) And you don't mention daytrips as vital to your visit. If you use the Search box top center, you may find some posts from people who stayed in inland or less-visited towns, maybe like Minori. It's a bad example, because there is not enough to do for five nights, but we thought Sant' Agata Sui dui Golfi had some small-town charm, and it's easy to get to by uncrowded bus. We mainly went there to find the 1.5 hour, all downhill path back to Sorrento, after enjoying the distant views. The path is 99% paved, and easy with the right shoes (no flip-flops.) I'm NOT comparing it to the Path of the Gods, this is for amateur hikers like my wife and me. I only mention this because it's "not Sorrento!"
I urge you to use the Search box enough to learn about disastrous problems with crowding in general, and with the Positano docks in 2023.
https://community.ricksteves.com/travel-forum/trip-reports/trip-report-2-weeks-of-day-trips-from-sorrento
https://community.ricksteves.com/travel-forum/italy/amalfi-coast-september-transportation-issues