So I've already watched a million Hallmark Christmas movies. Once Halloween ended I've pretty much had those channels on non-stop and my dvr is almost maxed out with them

Other ones that I plan to watch are:
A Christmas Story
National Lampoon's Christmas Vacation
How the Grinch Stole Christmas
A Charlie Brown Christmas
It's a Wonderful Life (caught some of this one already on tv the other day)
Nightmare Before Christmas (I consider this one a Halloween movie, but I missed it then so plan to watch it now)

I also love all those old Christmas shows, Rudolph, Frosty, Santa Claus is Coming to Town, Jack Frost, Year Without Santa Claus...

For horror Christmas movies:
Krampus
Black Christmas 1974 (it's streaming on both Tubi and Prime video)
I'd also like to catch the new version but not sure if I will
Silent Night, Deadly Night
Gremlins
Inside (if I can find it to rent somewhere)