Your best bet is to find a bikeshop with a demo program.

What I do is buy seats secondhand to try them out, sell them for roughly the same amount if they dont. It is a relatively inexpensive way to try a new seat every now and then, though a bit of a hassle if you want one now.

For me, I found that I am easier than others because I like whole range of seats. Mostly though, there is one characteristic it has to have, and that is that it needs to be wide enough for my sitbones. I also hated the bontrager infinity saddles. I own a fizik antares on one bike and the aliante on another and like them both. I also have cheap selle italia seats on some older bikes and they are also fine for anything under 3 hours. I guess I am easy.