9. Use quantitative method to analyze a financial problem 10. Application of a quantitative analysis method in risk management

This is the simplest.

If you want to talk about something useful

3. Research on stock price fluctuation.

This will be useful.

I don't like anything else. Basically, you can make up a paper with empty words. Of course, I don't know anything about banking in non-capital markets. Maybe there is a better topic in it.