Which essay topic would best suit a 1,000-word research paper?

What you like.

Explanation:

This answer is based on the assumption that you do not have any other constraints. Please stick within any that are imposed. Some other helpful tips include choosing a topic that has lots of research or other data on it, such as caffeine's impact on health. I recommend staying towards the realm of fact in a research paper. By this, avoid opinionated topics such as, "Which hot beverage is the best?"

I emphasize that you pick something you like and/or know something about as it will make the writing of such a paper that much easier and even enjoyable. Good luck on the paper.