What’s a good Christmas novel you have read that’s not a hokey romance or a romance of any kind?

Dickens' Christmas Carol - can't beat it.

Not quite a novel, more a group of short stories edited together into a pseudo-novel: Jean Shepherd's IN GOD WE TRUST, ALL OTHERS PAY CASH, which provided the source material for most -- maybe all -- of the movie A CHRISTMAS STORY.

And I haven't read it but keep meaning to: Seabury Quinn's ROADS, which "is a Christmas story that traces the origins of Santa Claus from the beginning of the Christian era."

nightengale before christman, by Donna Andrews

Christmas Carol obviously

The reindeer keeper