The sit squat works your legs and glutes.
Sit Squat Form Cue
Stand in front of a chair or a bench, with the chair or bench about 2-3 feet behind you. Hold a dumbbell in your hands. Make sure your feet are underneath your shoulders (hip width or slightly wider is good) and toes slightly turned out. Focus on sitting back, while keeping your chest lifted and a tight core. Inhale to lower to touch your booty to the chair, exhale to rise. For an extra challenge, do this on one leg with the opposite leg extended in front of you.