The first step once you have chosen a topic would be to brainstorm initial ideas. Then you may be able to create a research question, when you have chosen the area that you wish to study as a result of brainstorming different ideas. The research question should help you create a thesis statement. Finally, when you know the topic and the specific area of research, you can find an expert in the field to interview and give them specific questions relating to what you want to find out.