Bussing between Zurich and Bucharest and looking for ~4 cities to spend time in November to December

But I think I've been to the most obvious choices, so now I'm looking for the next most obvious choices to spend a week in each (hosteling or couch surfing)

So far I've been to -

• Lauterbrunnen (loved)
• Ljubljana (loved)
• Prague (loved)
• Zadar (didn't love)
• Sarajevo (cool, but ok)
• Belgrade (ok)
• Budapest (didn't love)

I'm thinking initially head east to Vienna and am just looking for more chill towns/cities where I can walk around, grab a coffee, and take pictures of a pretty city (like Prague or Ljubljana) or nature (like Lauterbrunnen).

Not much into partying or nightlife, but also always down to grab a beer with other people in the hostel.

Is Bratislava or Timişoara worth it?