This one is really fun! It’s a smorgasbord of imagines you can save to your phone to use for it’s background.
Now, with Androids, the images might need sized to fit your screen.
Here you go!
Many can be found here at Heroscreen.
I have found all of these on Pinterest! If you search Christmas Phone Wallpaper or Backgrounds, you’ll find tons for every holiday.
To save, right click and tap save image.