Letters to Aleksanta by Jessamyn Kingley

There are presents to wrap, cookies to decorate, and a tree to trim! The Draconis High Court of D’Vaire is about to have their largest holiday celebration, and as they prepare for their first-ever Secret Santa, much to Aleksander’s surprise, he’s given the role of Santa himself.
Tasked with this new responsibility, Aleksander is the recipient of multiple letters with suggestions for anonymous gift-givers while he puzzles over what to get the person whose name he plucked out of a hat crafted from his own dragonskin.
With plenty of festive spirit, the gang is ready for the big day and all its fanfare. However, an unexpected arrival takes the D’Vaires by surprise, serving as a beautiful reminder that the most important part of the season is their incredible family, including and especially their beloved Aleksanta.