To put it bluntly, you want to "sell an idea" that has no validation, no product, no customers, no reputation, no branding. No one is going to pay for that Idea

To put it bluntly, you want to "sell an idea" that has no validation, no product, no customers, no reputation, no branding. No one is going to pay for that Idea. That is the honest truth and you know it already. If you do want to validate the idea, you have to put something together. If you can write code, build a working prototype. Show it a few people. I will tell you a secret. Ideas are worthless but a working prototype can be worth something. I know a close friend who built a tool and had no clue how to market it BUT he was able to find a buyer for a good amount. Not an actual business yet but he has offered 6 figures for that tool.