Hip stretch suggestions?

Hi guys. I work out pretty well rounded and balanced, a mixture of HIIT, cardio, yoga and Pilates, 5 days a week. My weakest area is my outer hips, the part that is used when doing side leg raises. They get so tired so quickly and are sore after any Pilates or workout that requires side leg raises. My question is does anyone have any suggestions for stretching them out in a cool down? I can never find a stretch that satisfies that area... I do pigeon, modified pigeon, deep glute... Any other recommendations please? Much appreciated 🤗Thanks x