You'll probably have much better success pitching this idea directly to the founders of major gambling platforms like crypto-games.net, primedice, mintdice etc.
I did see another innovative platform looking to start up lately, maybe they'll be the best place to start;
https://bitcointalk.org/index.php?topic=5199588.0I would simply write up a formal proposal then forward it to several platforms on Twitter or directly to the founders if they can contact them.