You can effectively make persuasive speech topics by remembering some important point in the checklists with 8 key questions for determining a topic. Answer all with the first thoughts that comes in your mind.

What good persuasive speech topic I think is very important for public discussion?

What do I think is true or false?

What do I want my listeners to know, do, motivate, change, or to agree with?

What do I like or dislike?

What do you want to attain or accomplish, what is your goal?

Why should we think, feel or do the same?

Why do you stand for your values? How do you implement them?

What particular behavior are you trying to change?