Generally, speaking, there are two types of research paper: an argumentative research paper or an analytic research paper. Each requires a slightly different focus and writing style which should be identified prior to starting a rough draft.
To draw a parallel, a lawyer researches and reads about many cases and uses them to support their own case. A scientist reads many case studies to support an idea about a scientific principle. In the same way, a history student writing about the Vietnam War might read newspaper articles and books and interview veterans to develop and/or confirm a viewpoint and support it with evidence.
Use clear segues into adjacent points in your paper. Your essay should flow well, rather than stopping and starting in a blunt fashion. Make sure that each of your body paragraphs flows nicely into the one after it.
With the aforementioned tips taken into consideration, organize your entire outline. Justify main points to the left, and indent subsections and notes from your research below each. The outline should be an overview of your entire paper in bullet points. Make sure to include in-text citations at the end of each point, so that you don’t have to constantly refer back to your research when writing your final paper.