I suggest you try and find people who would either be prospective partners or clients of your project, write a brief message to them, and ask them to review you

I suggest you try and find people who would either be prospective partners or clients of your project, write a brief message to them, and ask them to review your work and comment. Also, answering questions relevant to your interest area on LinkedIn is a good way to make contact with people who have problems they are trying to solve.