Book editor for a Historical Research book

I am looking for an experienced book editor to work on a Historical Research book with me. The word count of my book is between 50,000 and 100,000 words, so the ideal candidate should have experience with projects this size. I would like for the editor to focus specifically on the story flow, providing constructive feedback and guidance for me to make revisions as needed. I am looking for a heavy editing style, so a thorough review of the material would be of great value.