Be careful with sauerkraut as it is very high in histamines and can cause many allergic reactions in the body, including sinus congestion. Other high histamine foods are hard cheeses, avocado and spinach.
Here is an excellent article, the diagram linking histamines to many medical ailments summarizes it very well.
https://www.sciencedirect.com/science/article/pii/S0002916523280533?via%3Dihub
I eat all those foods, so no problemo!................