Here’s the cooldown routine:
Easy jog or walk — 5 to 10 minutes
Hip circles in lunge — 30 seconds each leg
Lunge and twist — 30 seconds each leg
Pigeon Pose — 30 seconds each leg
Downward Dog with alternating calf marches — 30 seconds each leg
Run through all the above stretches on one leg first, then switch sides and do them all again.

https://www.self.com/gallery/the-best-cool-down-to-do-after-a-run