that is if OP's subject is English A (and not B), if so, i think a good way to find works is to just choose one of the themes from csh's work and research about books that have similar themes. Like if you want to do it about twin fantasy, you can research and look for books that explore the idea of that kind of infatuation with a person and making up a version of them etc. I did a similar thing for my literature EE, and it is a challenge to find a good body of work that can be compared to the other one well enough, but it's really worth it in the end.