O they do have mediums & healers ~ hit the menu to the left :) Good luck! https://www.cassadaga.org
Most of them have website's you can check. At the bookstore, there is a bulletin board you can read about each one. Some are quite well known in the country as well.
https://www.cassadaga.org/mediums--healers.html
Have you tried their website? Also, I'm sure you can call the bookstore and hotel and they can assist you further.
There should be info on the website.
They have a book there of listings
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