Only by bus/train on holiday through Bavaria and Baden-Württemberg?

We want to go on holiday in Bavaria and Baden-Württemberg in summer 2023 – special feature: comfortable travel exclusively by train and possibly with short but well-frequented buses . Do you have any tips on which places and sights are VERY easy to reach using public transport? We are interested in day tours with special…

Do you prefer castle ruins, intact castles, opulent or more sober-looking palaces or castles?

What is your favorite? Intact castles with interiors a la Burg Eltz https://images.app.goo.gl/KW5BAkcH9mptZ4y47 impressive castle ruins that are exposed to wind and weather, such as the Löwenburg in Monreal. https://images.app.goo.gl/H3NMEKoFWh3c46cs6 opulent intact castles a la Neuschwanstein https://images.app.goo.gl/H3NMEKoFWh3c46cs6 Palaces a la Buckingham Palace https://images.app.goo.gl/H3NMEKoFWh3c46cs6