Rec

Here is my best shot on MangaGo : https://www.mangago.me/home/mangalist/2345830/

There are polyamorous Shounen Ai on MangaGo !!! :-) _ one is called < Where the Dragon's Rain Falls > (loved it!) ; the other one is called Confession and has a sequel called Jealousy _

The Shounen Ai called Jealousy isn't really about jealousy, more about clearing misunderstandings, i enjoyed reading it.

Have you heard about Kimchi Cuddles ? It's really good !!! Once upon a time in 2015 i used to read it on the artist's website. Now it seems it's still accessible in several languages, and also was published under the name of < Ask me about Polyamory >
See these links for the information >>> https://www.tikvawolf.com/ https://www.tikvawolf.com/comics/ (or google Kimchi Cuddle)
It's really excellent as a tool to facilitate understanding and metacommunication !

Personnally i love the humour of that artist and her artstyle. Look for her early work, she draws about her life and how her metamours and life partners are navigating polyamory :-) !!