Soy yogurts are a good thing - but you shouldn't eat too much soy.
Surprisingly, there are no soy alternatives yet, although it would be perfectly possible to make them!
Based on coconut milk or nut milk (almond milk, cashew milk, etc.).
There are numerous instructions on the Internet. You can find very good recipes at kochtrotz.de

That would be something, dear Migros! As a pioneer in Switzerland, so to speak - especially now that more and more people want to do without animal products.
If not now, then when? ;)