I'm sure I've seen online companies who for a deposit send out 6 or 7 saddles for you to try. It might be worth trying less padded saddles as well - personally I've gone from a padded couch to the Selle Italia flite (via a few others on the way) and find my backsides the happiest it's been.
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Currently riding an MTB with a split personality - commuting, touring, riding for the sake of riding, on or off road :)