Saddle choice is an extremely personal choice - what works well for one person may be terrible for another person based on differences in anatomy and riding style.
Our suggestion is to find a good local bike shop that has a saddle demo program and try out several different models during actual long rides.
It is impossible to tell whether a saddle will work well for you in a store, and even on a single ride, since it often takes several rides to become accustomed to the new saddle.
Some online retailers have mail-order saddle demo programs if you don't have access to a local bike shop.