Food forest varieties

Hi, I am 14 and will start planting a food forest on two and a half acre in Austria, middle Europe next year. I want many old and native varieties.

(Like Rowan tree, Mulberry, Apple, pear, plump, (German: Speierling), rowanberry, quince, medlar(German: Mispel), etc.)

I do not have any prior experience on planting a food forest, I just wanted to ask if there are any varieties I just can not miss Out on? I would appreciate help on which varieties to plant and what pattern might be the best. Thanks!