The first place to look for a topic is within the assignment itself. In short, you will choose a piece of literature and an element within the work to write about. Your topic needs to be sufficiently narrow or broad to be able to research and write about. Appropriate topic selection can set you up for success if done well.
In order to get a good start at choosing a topic, you need to do some background research. Simply saying "I'll write about The Strange Case of Dr. Jekyll and Mr. Hyde" is a good start, but isn't going to get you anywhere useful. By doing background research, you can find additional terms, concepts, and ideas to turn a general idea into something that is easier to research, such as the role of addiction in The Strange Case of Dr. Jekyll and Mr. Hyde.
If you're not sure what you might want to write about, you can always look up the work or author in the Literature Resources Center. This database provides overviews and analysis of literary works, characters, and historical context.
Example that is too broad: Love in Elizabeth Barret Browning's works.
Example that is too narrow: Floor boards in The Tale-Tell Heart.
Example that is just right: Solitude in the works of Robert Frost.
Provides critical overviews of short stories from all cultures and time periods. Includes discussions of plot, characters, themes and structure as well as the story's cultural and historical significance.
Features discussion and analysis of poems of all time periods, nations, and cultures. Provides an overview of the poem and discussion of its principal themes, images, form and construction.
Provides critical overviews of novels from various cultures and time periods. Includes discussions of plot, characters, themes and structure as well as the work's cultural and historical significance.
Provides critical overviews of the most-studied plays of all time periods, nations, and cultures. Includes discussions of themes, characters, critical reception, dramatic devices and traditions as well as cultural and historical context.