In Conscious, a rather concise (in a good way) book, Annaka Harris writes about what consciousness is, where it might come from, and why it is even here. The book starts with breaking down the reasons we normally give (e.g. to have goals, which plants also have in a way). And then it proposes/flirts with another framework that was quite new to me (panpsychism). I’ve listened to the book, but will also give it a read later and update my summary/notes.
The book also mentions the lack of free will and thus nicely gives a wink to Sam Harris, her husband (Free Will).
On Goodreads, I do see some valid critique (relating to the lack of counter-arguments for her case).