You know about dragons already.
Dragons are one of the 3 first spacefaring races in Wheelbreaker but they are not common in the narative present. They continue to grow for as long as they live, althouth the rate of growth slows the longer they live, and in ages past the largest among them could fight gods.
* * *
In the age of exploration and the age of enthnostates dragons were a loose collection of slavers governed by a roughly feudal structure where younger dragons worked under the direct control of larger dragons who in turn worked under the direct control of even larger dragons. This system did not terminate in a single king though and instead ended with a council of ancient dragons numbering 12 members at their largest. The dragons at the bottom of the heirarchy were responsible for the cultivation, raising, and direction of kobolds who were grown from dragon's teeth and magically bonded to their creaters and forced to work as slaves.
Their numbers were reduced greatly during the Ethnostate Wars and the kobold slave rebellions. Sometime during REDACTED most dragons left to live in the realms of magic among the fae. In the narrative present very few ever leave their domain to enter the physical realm. They momstly chill in the realms of magic now, with a few still living in the physical realm. Some very old cities have dragons employed as librarians and currators and a few have dragons employed as bankers.