Where to sell a finished design project?

Question

Design

Where or to whom can I sell a finished design project with a well-thought-out logic and monetization model?
P.S. Offered to competitors

Answer 1

Only use it yourself.
I have an idea that I want to sell.
This is an idea in pictures, which is a little better, but nobody needs it.

Answer 2

If the design project is ready, the logic and monetization model are thought out - why not use it yourself?

Answer 3

It all depends on the idea, its direction and evaluation for the future. If the idea can be a great startup, then I would find investors and implement it. You can also put it in the bank of ideas like bank-of-ideas.ru.

Answer 4

If there is a project description, business plan, design, then it seems to me that it is best to go to a startup incubator. And you can sell separately. The idea to sell is almost unrealistic, because. The idea is not covered by copyright. And the design can be sold on markets like:
themeforest.net
https://creativemarket.com/