Sauerkraut recommendation

I recommend getting the "Russian style white" sauerkraut, made by the "Cultured Traditions" brand. You can get it at Whole Foods. It is expensive, but well worth the price. Here is a picture of it:

https://culturedtraditions.com/wp-content/uploads/2021/09/Kraut_Russian-White_Final-removebg-preview.jpg

My recommendation of this is so strong that I consider anyone who tries it and does not find it to be excellent to be an uncivilized piece of shit.

Is it kosher?

I don't know but my guess is probably yes.