A lot of times a PhD proposal which you have been already worked on, can be adopted as an unique one by another person in their geography, or professional areas. And that ways it is easy to build a strong consensus around your research results with a higher sample size.
The best part is that your PhD paper would receive citations in the next paper, and you be a guide to the other person. If all this looks exciting, than kindly list your proposal to this thread for others to contact you further.
For the easy of search list you proposals as --- "Area of Research", "Brief topic of Research". Do not make it too lengthy..