Shit man, it can be ANY subject you want? If so, if you’re looking for the easiest way out, just pick something that you already have knowledge about. I remember in High School I had to a similar project and I already had a lot of knowledge on Gun Control so that was my topic. Most of the paper I wrote came from my head.
If you don’t care if it’s “easy” or not, pick something that you feel strongly about. Writing about topics that you actually care about make the project much more interesting and doing the research is actually fun, for me it was anyways. One of the first English classes I had in college, the students were allowed to pick their own topics. My topics included Violence: Human nature, Abortion, Euthanasia, Atheism and Communism. One of the best classes I ever had.