You want to pick a topic that is broad enough, but focused enough to yield plenty of high quality search results from which to quote or reference. Use Google scholar to get a good feel for this. Look at both the number and quality of the results.
Ignore the advice to write about something you enjoy, this is usually misguided. Don't write on a "cutting edge" subject or you wont find enough quality sources. The topic should be newer, but not cutting edge.
I really recommend looking up Rapid Research Papers (Google it). It goes into great depth on how to choose a topic, which is where I got this info. It also provides the structure using visual charts, and provides templates in MLA and APA formats. It also is written with SPEED 9and quality) in mind so you get right to work and knock our your research paper fast! Www.rapidresearchpapers.com
Also, make sure you proofread it, and let someone else proof it. Allow enough time for revisions. Your grade will really improve with adequate revisions, but you wont see your own mistakes. You want a fresh pair of eyes to see it. Also read it out loud, your ear will catch many mistakes that your eyes won't catch.