I am looking for a book series that upon completion will leave a feeling of emptiness, as if I'm saying goodbye to a good old friend, when you realize the good old days were left behind. It's a shitty feeling that only comes after something great, something that left a mark on you.
The Cosmere is absolutely a commitment for sure. He does have some other side-content that isn't in-universe if you want to sample his writing style a bit. He did a short story collection recently called Tailored Realities.
I have a fun link for DCC that my description was kinda based on for some more info. Spoilers clearly marked on other sections of the site: