Burnt Kloverfield

James Kirk/Spock/Leonard “Bones” McCoy:

They're extremely devoted to each other to the point of willing to die for each other. They're so mentally compatible that McCoy was able to hold Spock's katra and Spock and Kirk constantly mind meld.

A Triad that balances each other out, it could be argued that Spock is the brains, McCoy is the heart, and Kirk is the soul of the triad. They will fight to keep each other alive against all odds.

Scout/Soldier/Pyro/Demoman/Heavy/Engineer/Medic/Sniper/Spy:

First disclaimer: Because I am submitting 9 people, two of whom are related ([Spoilers] the Scout is the Spy’s son), and i don’t know how your rules work with polyamory other than “everyone is dating everyone else”, I want to clarify: this gets shipped in various ways (and i probably prefer some more convoluted version where everyone is in the polycule in some way but not everyone is dating everyone else), but i guess me submitting this means “everyone with everyone else except the incest”.

Second disclaimer, gender: Jane Doe is a guy. His name is Jane Doe but he is a guy. Nothing complex about his gender. Pyro, however, is of unknown gender. the canon description goes “he's a fearsome, inscrutable, on-fire Frankenstein of a man - if he even is a man”, and the character is commonly headcanoned to be  some sort of nonbinary, though they can really be interpreted as being of any gender. We don’t know anything about their perspective of their gender, but the game is often referred to as having an all male cast and so on. I don’t know man i just work here.