Has been presented the 2020 list of the 50 best Italian restaurants: https://www.50topitaly.it/en/
Two things can be noted:
1) 3 Number One restaurants are in Emilia-Romagna of 4 categories.
2) Of the top 3 restaurants in the 4 categories, only 2 are located in Cities (Modena and Rome), the others are in little towns and villages. That means: discover Italy wandering around, not be focused only in cities!
Another consideration is that I have taken cooking lessons from two of the top 4 chefs, but this is only personal :-)