Get on your hands and knees, and kick back your glutes
I know glute kickback machines have a major fan following, but when I managed gyms, I refused to purchase them. They cost thousands of dollars and are highly unnecessary.
How to do it: To perform the same exercise, all you need is a resistance band. Sit on your knees and loop the ends of the CLX band over each foot, then come to a tabletop position on your hands and knees, holding the center of the band with each hand directly under your shoulders. Press one leg straight back, with your foot flexed, extending your knee and hip as you squeeze your glute. Return to start and switch legs.