Where to find a good freelancer writer?

Hello all
I'm not sure if this is the right place to post this thread, so I apologize in advance if it is not.
I have a somewhat unusually essay which I have found difficulty in doing myself, and the work done by one essay writing service was under-par.

I would like to have direct contact with an excellent writer who will only be asked to review my paper and see what can be done to make it better.

Thank you