Non fiction partly research topic

I am looking for a freelancer to complete a secondary research project for me. The non-fiction topic will be focused on science, and the freelancer should provide 4-6 credible sources in their research. The end product should be a comprehensive review of the selected topic. This research needs to be thorough and well-researched. The freelancer should present all findings in a written format that is easy to understand. Any questions should be asked prior to commencement of the project. I expect the highest level of professionalism when carrying out the research and producing the finished article, and will emphasize quality over quantity.