Verona is slightly out of the way but charming for a day.

Going to italy for the first time next month. On our second-to-last night we're sleeping in Florence, and then we want to spend our last day seeing sights between florence and Milan, where we're flying out of the next day. We're thinking of stopping/sleeping in Parma but wanted to see if there are any other recommendations for where to go on that route. Thanks!