Long-lived combo wanted – Leon, Golf or Fabia suitable?

Have a nice evening at all hands at the moment a Peugeot 206 SW, which unfortunately is no longer worthwhile due to the constantly occurring repeats. Therefore I am looking for a newer, small station wagon. I drive on working days daily simply 50 km into the work, i.e. on the day 100 km, half country road, half highway. Therefore come in the year about 27,000 km. PS should have already over 100, because I also sometimes want to overtake a truck uphill. My price expectations are at 15,000-20.000 €. So rather e in 1-3 years model.. Diesel or petrol I don’t know yet, since you never know whether a move or job change is due in a few years or other. Would a diesel also be enough for example 50 km work path? Is the financial aspect diesel super still relevant today? Have now taken these 3 into the narrow selection (for the first time only according to appearance, size and equipment). Other suggestions are however gladly seen. Leon ST (FR), Golf Variant, Fabia Combi Have these models main-sac And because I’m hoping for a useful car under it … I’m really at a loss because I don’t really have any idea about the topic My most important questions now: How does it look there with rust susceptibility and wear parts? As far as I could find the engine is not necessarily a problem? I’m very grateful for every tip and hint Thank you very much, dear greetings Zora