I suggest you start with the same-sex complex in Greek and Roman times. If you don't know much about it, it's meaningless to go through the literary works of ancient Greece and Rome now. All of them are voluminous and cannot be thoroughly understood in a short time. Moreover, second-hand texts are very risky. We might as well look at the homosexual complex in ancient Greece and Rome from the perspective of modern west. The recent best-selling Persian Boy and the author's other book Fire in Heaven (no Chinese translation yet) can be regarded as masterpieces of female parents, so we can explore the intergenerational changes of this complex. In addition, although it is a graduation thesis, it is not too ambitious. If your topic is "On the Homosexuality Complex in Western Literature", it must be quite uncertain. I suggest that you take one of the works as the matrix, and then combine it with other works, such as other works that also describe Alexander the Great (as well as film and television works for reference), or works of different times. Combining the theoretical works of sociology, we can look at Li Yinhe's In China. I won't repeat it here for the time being. You can find it yourself. Too many ... sociological theory is the foundation, literary language is the mother tongue, and literary content is described and reported in film language. Wait, wait, wait ... You can write it. Lots of ideas.

If not from the aspect of literary expression, we can also start with lavender language in western literature, such as some unique words, expressions and methods, which is the starting point of linguistic direction.

I can only provide these ideas for the time being. I hope it helps.