I'm looking for any non-hentai (but can be adult) manga, anime, light novels, visual novels, or novels that depict polygamy or polyamory. I am not looking for shounen "harem" stories.

Example: Honeymoon Salad

Bump

It is small part of the story but the catian aliens in Asobi ni Iku yo! are polyamorous. Also there is a lot of evidence that the island cult that dominates the story of Kyuusen no Shima is polyamorous in addition to being a violent matriarchy.

Monkey Strip - it's just a oneshot, but a rather good one.

not a manga but try the webcomic Snug Orbit on tapas

I used to have a list of this, but unfortunately I can't find it. I listed some titles at the top of my head, but I can add more if I remember.

These are not explicitly polyandry, but I think it is heavily implied:

• Shoujo Guard story in Togabito to Melody
• Shounen Dolls