Some folks use a mixture of red wine and stock or water, so you can do whatever suits your taste. Since it’s Beaujolais Nouveau season right now, you can that. I like Pinot Noir, Merlot, Brouilly, or a similar wine.
If you're working with a smaller pot, you can cut the duck thigh pieces in half, cutting the leg and thigh apart from each other.
Serving: You can serve with rice, green lentils, beans, or wide noodles. The duck can be made a day or two ahead, refrigerated, then re-warmed for serving.