If you can set aside time apart from your workouts, try Starrett’s couch stretch: In front of a couch or wall, sit on all fours. Place the shin of one leg parallel against the wall or couch, then bring one leg up into a kneeling position with your knee above your foot. Straighten your torso and fire your glute, as if to slide your two legs together. Hold for two minutes per side, contracting and releasing as you wish.
Widen your knees ever so slowly until you feel a stretch in your inner thighs. Make sure your ankles are in line with your knees, your hips stacked over your knees, and your feet and calves should be grounded and toes pointed out. Relax your shoulders, and if you’re able to, lower down to your forearms. If you have a yoga block, resting your chest on it will help you release your hips.