Underwear suggestions?

I'm usually around 5 inches soft and I have sizeable low hanging balls. When I wear normal boxers and don't move too much I'm fine. But god forbid I stretch my legs too quickly or run in a certain way or get a random boner, it all falls apart.

It gets really uncomfortable and I usually have to go to the bathroom to readjust my junk, not to mention my balls swinging around in my underwear when I'm running. It's even worse with a boner, my foreskin retracts and my now exposed sensitive head is permanently stuck to my thigh even after the boner goes away and it's straight up painful.

What underwear could help me with this? I've heard about pouched underwear, but anything better or is it the shit?