Reddit reviews Sources of the Self: The Making of the Modern Identity

A text that might interest you is Charles Taylor's Sources of the Self, which is a philosophical history of what it means to be a self. Be warned that it is a big book, and while the writing style is not very hard, it is certainly dry.

Another book that might interest you is Herbert Fingarette's Self-Deception. It's not exactly about personal identity as such, but it is about the philosophically and psychologically tricky notion of what it means to deceive oneself. The central question Fingarette explores is what it could mean to be both the deceiver and the deceived at the same time. The book crosses the line between philosophy and psychology, which is why it might appeal to you. It's also fairly small and the writing style is not too turgid.

Rawls is obviously important. It's also probably good to read something from the communitarian school of thought. Influential books include After Virtue by Alasdair MacIntyre, Liberalism and the Limits of Justice by Michael Sandel, Sources of the Self by Charles Taylor, and Spheres of Justice by Michael Walzer.

While I have not read Taylor's "Hegel," I have read his "Sources of the Self" and would absolutely be ready to recommend pretty much anything by him. In Sources, he does take a route very much influenced by Hegel to try and explain and explore where our sense of self comes from, and how it came to come from there. He does this by tracing a history of the idea of a "self" and filling it in from ancient times to modern, marking out and emphasizing each major change in what we draw our sense of self from. It's an absolutely brilliant work. I have never read a philosopher who is more respectful to those he disagrees with, too. He makes every effort to represent them fairly, while simultaneously clearly expressing why he disagrees with them.

In other words, if Taylor has a book or article on anything you're interested in, read it. Even if you disagree with him, you will come out better able to express your own opinions. You want secondary lit on Hegel? He has a book. Read it.