What is the best written work of fiction that you have ever read? (Ideally looking for something to analyze really deeply)

I fucking love this subreddit. Y'all are my people. I can tell everyone here really cares about lot about writing, and I think that's awesome. So I wanna just ask y'all what's the best written work of fiction that you have ever read? I want this post to just be an excuse for people to gush about their favorite books. But I also wanna look for more books to analyze. I managed to find another PhD program and I'm specializing in literature analysis. I fucking love analyzing what makes good writing good, and I think this might be the best place to look for some of the best written books I wouldn't be able to find anywhere else. Y'all delivered to me some of the best books I've read in my life already, so I'm more than happy to receive more recommendations. I'm open to all genres and I have no triggers. Go fucking crazy! Thank you so much for your recommendations in advance. I love y'all <3