Hi I used to fly around Switzerland when sitting my PPL.
There are so many wonderful airports there to fly to and from for both VFR and IFR flights.
A common training route for cross-country flights were Geneva to Yverdon along the coast of lake Geneva to Lake Neuchatel.
Then from Yverdon to Sannen. Special permission is required to cross Payerne military base (which is granted if not in use) and then the flight over the Gruyere area and the approach to Sannen (Gstaad) is breathtaking.
The next leg is Sannen over the Sanetsch pass to Sion. This is an amazing experience climbing quickly to 7000ft to make over the pass with the Diablerets glaciers on one side and tall peaks on the other. Then it opens up with a very steep drop down to the Valais with Sion ahead. From there you can see most of the 4000m peaks including the Matterhorn. Some great payware scenery for Sion, Sannen and Ecuvillens on MSFS if needed.
For an IFR a trip, try Geneva or Zurich to Sion, which would be fun. Or to Lugano or Samedan would be great. To be honest there's not many places in the world I would rather fly than in Switzerland.
Enjoy!