Okay, I'm making Gan actually do the thing.
The Jovians, our syscovery
So, turns out, we are a traumagenic median system and have been since we were very little. It appears we're one of those preexisting systems who took to Tulpamancy, though that's not to say there aren't created headmates. Wren was never a singlet, and as we got better at identifying fronters Wren quickly started having an identity crisis. So having finally made it to the other side, we are the Jovians:
Io - host - Previously the felt identity behind Wren. They aspire to be "good", whatever that means at that time and place
Ganymede - co-host - a man made of emotional detachment and sarcasm
Europa - gatekeeper - the other gear of detachment, it controls the body directly
Callisto - trauma holder - the oldest and most heavily cratered moon
Metis - protector - he makes sure we can handle our shit if it comes to that
Galileo - archivist - observes from afar to learn as much as he can.
Sandstorm - co-host, delight - a tulpa who carved out a permanent spot for himself by developing a new role
Bart - tulpa - I projected onto this man so hard he appeared in my brain and stuck there
Most of the tulpas turned out to be preexisting headmates filling in a constructed sense of identity, like Rune maps to a mix of Ganymede, Metis, and Europa. It was so hard to spot for years because few of the Jovians have a defined felt sense of identity, we have high co-consciousness, and lot of it was both hidden from ourselves and masked from others. But all the years of blind searching for something was worth it. It's good to finally know who we are.