Polyamory across genres

Hello! I love my non-fiction polyamory books but I want to read more fiction books with polyamory rep in it. I've tried to include a variety of genres although it is leaning towards scifi quite heavily.

I haven't read all the books here and am open to books being suggested or removed.

I've tried to keep it to positive rep. I've edited the list to focus on main characters engaging in polyamorous relationships.