Choose a topic which interests and challenges you. Your attitude towards the topic may well determine the amount of effort and enthusiasm you put into your research.
Focus on a limited aspect, e.g. narrow it down from “Religion” to “World Religion” to “Buddhism”. Obtain teacher approval for your topic before embarking on a full-scale research. If you are uncertain as to what is expected of you in completing the assignment or project, re-read your assignment sheet carefully or ASK your teacher.
Select a subject you can manage. Avoid subjects that are too technical, learned, or specialized. Avoid topics that have only a very narrow range of source materials.