The best way I can think of to sell an idea is to build it (at least a prototype), prove the idea, and then try to sell it. You aren't going to be able to sell

The best way I can think of to sell an idea is to build it (at least a prototype), prove the idea, and then try to sell it. You aren't going to be able to sell just an idea. You can recruit a partner to work on it with you; you don't have to build it yourself. If it's not worth this amount of effort, then I don't expect someone will pay you money for an unproven idea that doesn't have enough value to spend your own time on.