We will not sell you a publication.
Reviewers, editors, journal priorities and whether your study contributes anything new are outside our control, and outside everyone else’s. Any service that guarantees acceptance is either misdescribing peer review or describing something you would not want your name attached to. What is inside our control is the method, the transparency of the analysis, the accuracy of the reporting, and conclusions that stop where the evidence stops. Tell us what you want to find out and where you have got to. We will tell you what we think is feasible, and we will tell you if the answer is nothing.