Like music explicit about winter and how it makes you feel. Maybe think more yuletide than Christmas I suppose. Heavy on the pine wood forest and cold winter nights and light on the Jesus and love
The vibes don't have to be happy either, some songs by woods of ypres work as well
antipodean christmas has little of the wintry association tbh. That said, I can't immediately think of a xmas song that doesn't touch on love etc
Ulver? https://www.youtube.com/watch?v=x3WdtS4FZck
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: