Research papers should always start with a question worth answering and for the reader to consider.
Think about what you're passionate about and put a few ideas down on paper but make sure you select a subject you can manage.
Whether you want to create an APA research paper outline or some other style of paper, you'll need to consider your sources.
If you think your topic has a lot of sources to discuss, read around more and ask yourself what you've found out.
Once you've got a few preliminary ideas for research papers examples, start reading on them and try and narrow your focus down.
After reading, have you found out anything interesting?