Medical research is a hot topic and can make a good research paper, especially if you get sources that are from authoritative journals like Science and government sources like the Centers for Disease Control. You can do topics like:
What ways does the government do surveillance for infectious diseases?
What infectious disease is the most threatening to break out into a pandemic?
Can we ever cure the common cold?
What are some better ways to prevent people getting the flu?
See many more examples as well as tips for writing on my other articles. Here is one to start with https://owlcation.com/academia/100-Science-Topics-...