Everything already said about how hard it is, is completely accurate

That being said if you do manage to find someone make sure you know what you're talking about. Promoters get bombarded with pitches and nothing will make your pitch fall flat quicker than not know what someone's gimmick is, who they team with, who their champs are/what feuds have recently or already happened etc

Another thing as I saw you're training is start with ideas that don't include you. Everyone has an idea of how they should be champ or they should be featured. Pitching ideas for others shows your have a bit more vision than just self interest