Now, if you propose that each galaxy has a dominant specie, for immigration reasons (immigrants from the same origin cluster together), I'm gladly following you
Quite the discussion I seem to have sparked here... let's see where this goes
Anyways, but yes, this is something I can imagine - but maybe with "updated" or maybe completely replaced species. So since we have eight main galaxies (I know of an OXP that adds another eight), and eight main species scattered throughout the galaxies/regions, this is something I believe to base a reimagination of the species in the Ooniverse.
This of course would have to be given some thought. I too think it's best if one species is the dominant one, where as others get a share but not as much. Maybe this is for diplomatic reasons, tactical reasons, or simply because of a trade agreement of some sorts - the possibilities are endless. For bonus distinction, each species would get their own main station design and then maybe some variations based on the tech level in that system. The higher the tech level, the more sophisticated a station is.
Maybe we can start with this:
Each race has their name for them, due to their skin and hair color. Humanoid in shape, but very tall. Believed to be ancient, excel in trade and diplomacy. Dominant in Region 1.
Known as the "Grays" for their prominent skin color. Excel in covert operations, very ancient, huge scientific knowledge. Dominant in Region 2.
Obviously the "mainline" human race. Jack of all trades but also masters of none, even engage in rogue and pirate activities. Sometimes excel in diplomacy and science. Dominant in Region 3.
Mostly a war-faring race and almost always engaged in combat, they are reminiscent of an insect-like shape. Few have ever seen them in person. Excel in military incursions, defense, attack and weapon manufacturing. Dominant in Region 4.
Order of the Venthu
Primarily a religious race, somewhat humanoid in shape. They own the biggest financial institution in the ooniverse, The Bank of the Black Monks. Excel in trade and financial brokering. Dominant in Region 5.
Similar to humans in shape, the Brane are mostly an exploring society. Claim to have visited every single system in the Ooniverse. Excel in exploring and data mining, but also experts on the matter of defense. Dominant in Region 6.
People's Republic of Chi'taia
Dark-skinned, with three legs, and arguably similarly as huge as the Tall Whites, the Chi'taia are a ruthless race that engages in all kind of activity which promises to extend the race's possession of things as a whole - the more the better. No political form, but can be defined as anarchy. Excel in aggression tactics and military strategy, but are willing to trade with anyone offering good deals. Dominant in Region 7.
State of Prathell
Ruled by an alliance of their most powerful corporations, the Prathell are somewhat lizard in shape, but also humanoid. They are excelling in any kind of industry and have learned to make good deals. But also no novice when it comes to defense. Dominant in Region 8.
An insect-like race not known to have any origin. Their political direction remains unknown, as well as their area of expertise. Though the past shown this to be war-faring race with no other aim then to expand their space, or make sure that the space they enter, will remain theirs after an incursion. Not dominant in any region, but appear in any region, at any system, with no visible pattern. Seem to excel in weapons technology. Dominant in interstellar space.