While I cannot suggest a good topic for you, because all people are different. I can give you a few principles to use, so that you can choose a good topic for yourself.
First, all good essays have a thesis statement. This basically means that you must have a main point of the paper. Moreover, a good thesis statement is debatable. There will be some people who agree with your thesis statement and others who disagree. For example, a good thesis statement would be: Antigone is more tragic than Oedipus. Not all people would agree with this statement. So, your thesis that Antigone is more tragic is now part of the debate.
Second, all good essays should have supporting points. In other words, you simply cannot have a thesis; you need to support that thesis. To use the example thesis above, why do you think Antigone is more tragic? The better your reasons are, the better your thesis will be.