I believe the definition of Reliable is kinda vague in this context.If by reliable you mean someone who wouldnu2019t take your idea and develop as his/her own, I think that most of us coders are good-hearted and wouldnu2019t want to do such an thing to anyone. But being on a safe side, you could apply for a patent or present your idea at some pitching events like Irshad Mehmood mentioned.And if what you meant was someone who can start working on your idea with a minimum guarantee that he/she can finish it, I guess you could look at the leader boards of some popular coding challenges. Or you could go to some hackathon relevant to your idea and present your idea there. You may be able to find a coder who would love to work with your idea. Just saying.Also, if youu2019re okay with creating it yourself, itu2019s not that difficult to code once you put your heart into it. You only need a lot of patience. Hereu2019s an image that depicts Instagramu2019s story. Good luck. :)