I just saw on the Wiki that the Chronicles are a collection of 10 books not 5 No, no...there are 5. Courts of Chaos is the last of the 5 Amber books. Anyone who indicates otherwise is a horrible person and likely a ******.
I just read Open Secrets by Alice Munro. It's not in line with anything you asked for, but I think you'd enjoy it if you haven't already read it. Nexa's reading
Far from the Tree and is enjoying it. It superficially seems like something I'll like, but her recommendation is probably good enough.
Do read the Iain Banks "Culture" books if you haven't (start with Player of Games even though it's not the first book, it's a far better entry point) already. Pulpy, but interesting big ideas. I've been reading the Malazan Book of the Fallen books lately, and honestly, they are kind of horrible. The writing is mediocre and the plot is fan ficy. I keep reading them, though, so there must be something that hooks into my lizard brain somewhere. Martin's Dunk and Egg stories are worth reading while waiting for him to die or excrete another book with 900 pages of Dornish water gardens and drunken god priests crises of faith. They are short, though, and closer to YA than most of that series.
That's all I can think of other than usual "things I don't mention because I assume you've read them:"
Blood Meridian, White Noise, Nabokov's entire bibliography, etc.
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To make a long story short, I don't take any responsibility for anything I post here. It's not news, it's not truth, it's not serious. It's parody. It's satire. It's bitter. It's angsty. Your mother's a *****. You like to jack off dogs. That's right, you heard me. You like to grab that dog by the bone and rub it like a ski pole. Your dad? Gay. Your priest? Straight. **** off and let me post. It's not true, it's all in good fun. Now go away.