Type "Holidays" or "Christmas" into the search bar. This will pull up a curated list of seasonal tracks.
Most audio on Mixkit falls under the , which is very creator-friendly. Astounding Royalty Free Stock Music - Mixkit ШЄШЩ…ЩЉЩ„ mixkit hollidays 690 mp3
Go to mixkit.co and click on the Stock Music tab. Type "Holidays" or "Christmas" into the search bar