One word comes to mind to describe this book: exquisite. It’s so, so good. It also has a description and premise very similar to Six of Crows. And yes, it has a lot of similarity but still manages to be so unique that the comparison feels unnecessary.
Séverin, after a job gone wrong, gathers his unlikely allies together to find the most challenging-to-find artifact of all, and unknowingly save the world at the same time.