Turkish Getups (https://youtu.be/saYKvqSscuY) Use anything you can (weight, can of soup, shoe). Focus on the quality of the reps. It says 4 sets, but if you’re short on time, cut it down to 2 or 3.
Glute Bridge (https://youtu.be/b6hV2AP6rkA) Really squeeze at the top. Add weight if desired. Try single leg to add a challenge.
Supermans (https://youtu.be/z6PJMT2y8GQ) Slow and steady. Pause at the top for added effect.