Are you going to Ederle I think?
BTW, here in Italy our s**t government put a hefty tax on e-liquids, so the most of the shops closed and you won't find a lot down the streets. I suggest you to buy online, there are a lot of shops in Slovenia and other nearby countries that ships to Italy in usually 24 hours. Until they ban outside of Italy e-liquid buying, maybe next year, that's the best route to go IMHO