Hi. Looking for a great place to stop between Salzburg and Frankfurt for 2 nights.
You will likely have to change trains in Munich, so that is the obvious choice. You do not say your interests, time of year you are traveling..
You have almost 1/3 of Germany to choose from. Agree with Sam that Munich is a convenient and obvious choice. I would add Stuttgart, Nuremberg, and Wurzburg as options.
Rothenburg ob der Tauber.
What did you like about Rothenburg ob der Tauber? We were thinking this as an option.