There are many places that you can look over research paper outline samples for free. The first place is your teacher. If your teacher asks that you submit an outline, you can ask for a sample to review from a previous student or perhaps from their collection. You can also look at writing guides which often contain samples for each style of writing, including the research paper.
It helps you to organize your thoughts and arguments
Sample Outlines for Research Papers
SAMPLE PAPER OUTLINE - Austin Community College