We are going to be traveling from Barcelona to Paris at the end of April via train and would love to find somewhere to break up the trip for two days in between. We stopped in Beaune in 2016 and loved it so we would like to go somewhere new. I had Bordeaux ( or St. Emilion) flagged but the allure of Provence (Avingon) is also so tempting. In college, I dreamed of going to Aix-en-Provence but I'm nervous without a car this would be tough.
Knowing we're traveling by train and do not have a car, where should I look into as out stopover?