So far, our best guess as to who could be under the Fortune Teller mask is Lamar Odom. In addition to being connected to the Kardashians through his previous marriage to Khloé Kardashian, Lamar was born in Queens and has discussed his journey with addiction at length, which could be connected to the hourglass clue.
Source: https://www.distractify.com/p/who-is-fortune-teller-the-masked-singer