I'm participating in Fandom Stocking this year. Here's mine.
There are tons of stockings hung so browse around and see where you feel you can contribute. I'm focused on the upcoming Faberry fandom week at the moment but will be spending the latter part of this month on filling some stockings if I can.
It's been forever since I've done something fandomy like this so I'm hoping it kickstarts me out of my writing funk/malaise I've been in.