Don't get me wrong. No professional investor will invest in just ideas/proposals unless your have a successful past track record of entrepreneurship or you have some kind of commercially viable patent or some other similar legal right. The well-established meme in the investor world is such that "ideas worth nothing unless executed" Most potential way for you would be to find someone from FFF (family, friends and fools) to fund you. Once you have the business running and making some real world sales, then only pro investors would even be willing to look at your proposal.