Good speech topics include the legalization of marijuana, the history of tobacco use and blaming the dog for mishaps. Speech topics can be persuasive, informative or funny. A good speech needs to be innovative and creative.
A good persuasive speech topic gives the speaker an opportunity to express an opinion, but it must be appropriate for the audience. For example, teens may like a speech about mandatory drug testing for teens. However, retirement plan failures may work better for older adults.
Informative speech topics, such as the history of comic books or possibilities regarding alternative fuels, simply give information. When a funny speech is appropriate, the speaker should enjoy writing and presenting a topic, such as fun with superglue, escaping zombies or how to catch a cold.