You can't go wrong with "Overcooked! 2"! It's a chaotic kitchen simulator that really brings out teamwork (and a bit of friendly competition). It's perfect for all ages, and it's hilarious to watch everyone trying to keep up with the orders. If you're looking for something a bit different, "It Takes Two" is worth a look, it focuses on cooperation and puzzle-solving in a beautifully crafted world. It's definitely more for the older crowd, but the charm and story can appeal to younger players too. Have you tried any of these, or do you have a specific genre in mind?