Yet untranslated Japanese fiction

Hi all, I've found that I'm finally at a level where I can plod through a novel or book of short stories in Japanese and, as a big fan of Japanese literary fiction, I'd love some recommendations of books that are not readily available in English.

I read 消滅世界 by Murata Sayaka before it was published in English earlier this year, as well as 愛の夢とか – Kawakami Mieko's short story collection.

Some other authors I've read in English and enjoyed are Kawakami Hiromi, Kikuko Tsumura, Tsushima Yuko and Motoya Yukiko. Anything by authors who haven't broken into the anglosphere would be most welcome too.

As my reading level is around N2 level I still get rather lost when things get too abstract and philosophical (those who have read Kawakami Mieko know how her descriptions of feelings can lean a bit on the big-brain side lol), but I'm open to all recommendations!

Thanks in advance.

Edit: Apologies if my post was a bit unclear – I'm looking for books written in Japanese that have no English translation available in order to find some hidden gems that I otherwise wouldn't be able to access.