Leading up to Christmas my watch list is (in no perticular order).
Black Christmas (1974)
Silent Night Deadly Night (1984)
A Christmas Story (1983)
The Grinch (2000)
Elf (2003)
Gremlins (1984)
Better Watch Out (2016)
Silent Night (2016)
National Lampoon’s Christmas Vacation (1989)
Batman Returns (1992)
Krampus (2015)

Then over the holidays the obvious ones.
Star Wars (OT)
Superman & Superman II
Masters of the universe (1987)
Teenage Mutant Ninja Turtles (1990)
Back to the Future I, II & III
And a mix of James Bond films too.

Oops
Forgot to mention Uncle Buck (1989)
Don’t know what it has to do with Christmas but always get Christmasie vibes when watching it.