Hope this helps :)) All answers on here
Chapter 2 of the Great Gatsby opens with a literal description of the city dump, referred to as the "Valley of Ashes." The Dump is a symbolic representation of the american dream now left to decay on edge of the city fueled by materialism and greed. This related with the general theme of the story about self-centeredness and greed filling the world with trash.
So! You could put together a bunch of stories in one essay explaining how they are some what simular. It would put in extra work, impress your teachers, and you'd get explore some intresting topics! I have a few suggestions but I'm gonna comment them because I don't wanna have to retype this-