I can tell you a lot about Rome and Venice. I know a fair amount about Capri and a little bit about Ischia. I can help you plan wonderful days full (but not too full!) of eating in great places and going to wonderful museums and shopping in cute boutiques in those places. There are approximately a billion places I don’t know. But, I do know a guy person who does.
Here is my list of who I call when I need the good Italy travel intelligence. I threw in France and the UK too. Save yourself from the endless Google/Instagram research loop and get in touch with the experts.