I have been wearing the padded arss bicycle shorts for quite a while now. I have a few from EPS and Giant, they help with the real culprit, heat. And you can pull your pants off and still have shorts on, and without getting arrested for exposure.
They also help the inside of your legs, they come down the thighs 3/4 and are seamless and very comfortable. I can do 500 miles a day, and short of just being sore from sitting, my arss is not uncomfortable.
Another thing I do is stretch out at stops, legs, hammies, back ans shoulders. Move some blood.
Good luck on your search.
Ride safe all.
Greg