If you try to keep your hips upright on the saddle by rounding your back, then you are making it difficult for the saddle to be comfortable. You have to abandon any of the perineal scare that has been popularized since before the turn of the century. Sure it is a thing for some very few.
Keep you back straight, lean forward and pedal at a good effort. The pedaling forces will lighten everything about how you sit on both the saddle and bars if you are balanced around your BB.
I like saddles that have a fairly flat profile from nose to aft. Other's like a little rise, but they never worked for me. While many swear by leather saddles, I always wondered if they'd suffer from all the sweat that goes down my body and out through my shorts onto the saddle on long rides. I wanted one at one time, but I found much less expensive that are plenty comfortable for 60, 80 and 100 plus miles.