If you're looking to work towards a single-leg squat, here are some exercises that can help you build the strength and stability required for this movement:

1. Bodyweight squats: Start with two legs and gradually progress to a single leg by balancing on one foot while you perform the squat.

2. Bulgarian split squats: Stand with one foot in front of the other, both feet pointing forward. Lower your back knee towards the ground, keeping your front knee bent.

3. Step-ups: Stand in front of a bench or step and step up with one foot, pressing through the heel to stand fully on the step. Step down with the same foot to return to the starting position.

4. Calf raises: Stand on one leg and raise your heel off the ground, balancing on the ball of your foot.

5. Box squats: Stand in front of a box or bench and sit back, touching your hips to the box. Stand back up to the starting position.

Start with lighter weights and gradually increase the resistance as you get stronger. Perform these exercises with good form and remember to work both legs evenly to avoid imbalances.