A research proposal is meant to justify the need for research and present several practical ways to conduct the study.
Also, a good proposal has to contain a substantial literature review and a detailed methodology.
So, considering your topic, you might start by defining the issue.
What do you think about how well the issue is studied right now? Does it have enough attention of scholars?
Are the studies thorough? Do they cover both, general and specific issues within the topic?
Next goes the statement you make. What do you think of the whole issue or specific problem within the topic? What do you believe and what you want to prove? You may use the free thesis generator to make it easier to formulate.
Specify the methods and practical ways you are about to use in your thesis.
Write down the literature you studied for the research.
Hope it helps!