Alice in Wonderland is a great related text!
I noticed you don't have much under poetry, I recommend 'Daddy' by Sylvia Plath. It's a really good general text because it deals with discovery about the true nature of other people (the speaker's father and husband), discovery of the realities of the persona's relationship to them, discovery about geographical locations linked the the persona's familial heritage (Germany/Poland) and of the events that irrevocably shaped these locations (WWII, in particular the Holocaust). There are few questions that could be thrown at you that you couldn't use that poem for.
While it is part of the Ariel suite that is prescribed for EE1 After the Bomb, it's such a small part of a single elective that I really don't think that lessens it's ability to be used as an ORT. Furthermore, it's so well known it won't just look like you've lifted it from the course prescription list, and it's a sophisticated text.