Well, as it happens, I had an idea while out earlier.

What if I did this.

Alien "deity" whose subjects turned on her(aka a bunch of fanatical robots, but actually the inner sanctum who decided they didn't actually need her anymore), stripped her of her powers or completely changed them out, and marooned her on Earth as the ultimate fuck you. Since y'know, alien queen amid a bunch of mostly xenophobic creatures who hate each other too. And she turned to alcholism and drugs to help stave off her own mind fucking with her.

Basically from a technopath who created her own race, to a down on her luck alien who maybe only has regeneration or some sort of power that prevents her from getting drug or seriously sick. Or can manipulate buildings instead of her technology powers that led her build a stellar empire. I dunno, the power can really be anything, since the race of robots had harvested powers data from a few star systems.

It's an adaption of my "Rockverse Canon"' principal race's founder, or my cosmic traveler OC. Who I need to write the CS for.

If that's not alright(though they'd be using Zero Two or WRS for a FC if that's fine(bit of a tip in the former to my personal OC), for plot reasons), I can come up with other ideas as needed. Or they left her with severe health problems. I dunno.
I'm just spitballing here. Another option is a member of the alien race sent to Earth to earn their name.
I'm for anything, really.