Beer and food in Porto

Portugal was the final destination of our trip to Europe.
I was planning to go to Sevilla as the final destination in Spain, so I considered whether to go to Lisbon or Porto.
Since the destination after that is Rome, there are more flights from Lisbon, so I decided to go to Porto first.
I visited this city once five years ago and really liked it. The small town is within walking distance to major tourist attractions and delicious restaurants.
Also, I don't know about all of Portugal, but I would like to live in a city where prices are quite cheap in Europe.
I also checked real estate, but I felt that it was cheaper than Fukuoka.
Also, the restaurant where the locals go by myself last time was so good that I wanted to stop by again.
I am considering taking the train to Lisbon.
Lisbon is a complete stranger, but it seems to have a lot of interesting things.
I think it was the center of the Age of Discovery, so I would like to touch on that history as well.
We planned two nights each.
After that, we moved to Rome, the final destination of our trip.
Due to the flight schedule change on Ryanair last time, I was forced to change my stay in Rome from 4 days to 3 days, so it became difficult to go to various nearby towns.
I'm thinking of stopping by Florence, but I'm reconsidering whether I can stop by Naples somewhere in the first half of my stay in Italy.
With this, I would like to conclude the outline of the itinerary and consider the preparation status and the troubles and problems that have already occurred.

Spanish and Italian below