Books that explore friendship adult male friendships?

Hi all, I'm looking for stories about friendships between guys. I love books about friendship / complicated relationships but I find they're often either guy/girl relationships or girl/girl ones, I've never read one that's about two adult men and their friendship with each other.

I'm open to lots. I love literary fiction. When I think of books I like that fit this vibe (just not about guys exclusively) I think of Strange Weather in Tokyo by Hiromi Kawakami or Sweet Bean Paste by Tetsuya Akikawa (the book doesn't have to be Japanese haha it's just what I've been reading recently)

Thanks in advance!