Books with unique storytelling styles

I am looking for more books with unique structures. I don't just want 2,3,4, 50 POV books, because that seems to be the new trend.

I love both The Night Circus and The Starless Sea. The Night circus is told wildly out of order and The Starless Sea is both out of order and alternates between telling you the story and being excerpts from books that exist in the story.

Last year I read a mystery last year that bounced between the story and letters to and from the author of said story from a stalker.

I have already read all of the Alix Harrow books.

I am not genre specific, though I tend to avoid high fantasy. otherwise, I'm down for anything.