Honeymoon I’m Italy help

Now looking to do our honeymoon in Italy in March, where we’ll fly into Naples and stay in sorrento for 5 nights.

Then we’ll take a train to the Tuscany region for 5 nights. Where should we stay while we are in Tuscany? We were thinking 2-3 nights in Florence and 2-3 nights in a winery hotel or countryside hotel in a smaller town. Any towns you recommend?