A galactic Empire with Earth as Royal grounds where only the Empress and her court lives, a terraformed Venus as de facto capital and millions upon millions of worlds that pay taxes to the Crown in order to remain connected. The Crown emerged from the corporate entity that owned and maintained the negative energy field generators, that are used to power the system of wormholes used by humanity to navigate its interstellar territories.
At least, that’s the lore I use for my sci fi stories I’ve been writing but I am yet to publish.