Hello and welcome. Are you looking for something not discussed that much? Everyone knows about It’s a Wonderful Life, for example. The Bishop’s Wife is a favorite, but that’s also well known.
One I don’t see mentioned that often is We’re No Angels with Humphrey Bogart, Peter Ustinov, and Aldo Ray. The Christmas stuff is minor, but it’s there. It also has Basil Rathbone in it.
unless it is Lion in Winter, which has some of the best dialogues in any movie from the 60s. Based on a play, the remake with Glenn Close and Patrick Steward was also great, because of the text. I watch the original every christmas!