You've tried two Brooks saddles. Maybe you should try something besides Brooks. Fizik perhaps?

B17 Std is 175mm wide at widest point, B17 Narrow is 152mm. Some suggest Narrow is better for bikes with drop bars while Std is for bikes with bars which result in a more upright posture.

I had an S mistakenly shipped in place of the B17 Std I actually ordered. As far as I could tell, they had the same shape but it was as if someone removed 2cm from the nose portion of saddle (according to Brooks B17S is 23mm shorter than B17 std).

Good luck. I believe finding a comfortable saddle is a never-ending pursuit for a significant portion of bicyclists.