Do you have a bike shop nearby that has a return policy on seats? A local Portland shop has a "library" with ~25 different seats. You can buy a $25 "library card" and take out seats one by one, as many as you want. Also, have you gone for rides with the wrenches to adjust seat position? (Mark your current settings first. 2-bolt seatposts can be a real asset here because they allow you to get exactly the right tilt and return to your former setting.)
One popular notion that absolutely doesn't work for me is the "level seat". I've ridden nose down for 40 years. I'd be throwing away crotch health to achieve that "ideal".