Polyam comics I love you for this thread. God I want more rep. I need to check out every comic on this list.
My comic will feature several poly characters eventually and has a male lead, but it's at such an early stage I don't know if it's fair to advertise it because it'll take a while until it gets to the actual relationships so uh ... yeah. It's also going to be a more positive take on polyam relationships - like, the polyamory won't be the main focus or main struggle the characters face, they'll just exist and love each other in a world that comes with more than enough challenges. So I wouldn't necessarily consider it a learning resource, more of an attempt to normalise ethical nonmonogamy and relationship anarchy. (If you do want resources tho hit me up).
Besides that I can very much recommend Charity Case. It's one of my absolute favourites. I know it's been posted already but it's amazing, so it deserves to be shared again.
And now please excuse me while I go read some comics. Fuck I love this thread. Gimme that sweet sweet representation.