Verona would be a lovely 1-2 day stay. It’s busy and cheerful. Definitely stay in the old town. While you could get through the major sites in a single day, the pace is slow here and I enjoyed wandering the

I don’t love Venice. Three trips in, I’m not sure that opinion is likely to change. Be prepared for crowds, tourism on an extreme crowd, and sub-par meals (if you don’t do your research). It’s likely possible to have a