American literature addressing the American dream is voluminous. One way to find a title for an essay on the subject is to borrow or expand upon an existing title or a phrase from an existing piece.
An example would be Edward Albee's "American Dream," which debuted in 1961. The title lends itself to essay titles that address themes from the play. Ann Petry's 1946 novel "The Street" reflects the hardships of an African-American mother's efforts to raise a son in the squalor of 1940s. The straightforward title evokes expansions on the title and theme.
Throughout American literature, one can find examples of works touching on the theme of the American dream. Each of them affords opportunities for reader to use their love of language and ingenuity to name essays addressing those works.