A Chest of Drawers (A Chest of Drawers) by TerryJ
This is a story set in season 12, focused on Jimmy Palmer and his new fatherhood.
Those First Days (Those First Days) by K9Lasko
This tells the story of a yearly ritual for Gibbs. It's a character piece.
Forgiven (Forgiven) by Alidiabin
This expands on a piece of the Jackson Gibbs backstory from the season 7 episode Faith.