Generally, I tell my students to narrow their choice to two or three topic questions that interest them the most. Then start reading about those topics by doing a Google search to find out just a little bit more about them. Find out what are the possible answers for that question and see how hard it is to get information on that topic. The easiest paper to write will be:
1. A topic you already know a lot about.
2. A topic you find a lot of information about when you are researching.
3. Something that is interesting to you.