Best leg workout

My leg training program includes:

-5-10 minutes of running as a warm-up;

- 4 sets of 20 squats spaced for 90 seconds

- 4 sets of 20 lunges spaced for 90 seconds

- 4 sets of 20 lateral thrusts in the valley for 90 sec

- 5-10 min of final stretching

I repeat this 2-3 times a week