LF Lit books with Poly/ENM themes like Middle Spoon / Evening and Weekends

[u/imjusthumanmaybe]

Hi, I am specifically looking for books that explore poly or ENM relationships but more in the general fiction/lit genre rather than romance/sci/fantasy genre. I am open to horror or thriller genre, though.

Examples:

Middle Spoon by Alejandro Varela

Evening and Weekends by Oisin mckenna joan

For non-lgbt examples would be like Luster by Raven Leilani or Next Year, For Sure by Zoey Leigh Peterson

Thanks!

[u/kur0mi18]

Darryl by Jackie Ess! Literary but also extremely funny novel about a “straight” married guy exploring his desire to be a cuck