Honestly, she'd def go the alternative route. She, along with Elix, would join the biker group Kregg infiltrates. It would probably start with him awkwardly asking if his colleagues could join lmao.
With the other ladies, Crash would definitely be that friend who barks at cat callers. She frequently walks with Anissa or Thula to and from their workplaces.
Also, she would sooooo get ragebaited by those weirdos with their 'YOU WILL GO TO HELL' signs. She'd be genuinely confused at first bc she doesn't understand the concepts of homophobia or racism. But then she'd argue with the hecklers/auditors (whatever the hell they're called) because it's weird to care about something that doesn't affect them. Kregg and Elix would constantly have to drag her away before those auditors or whatever meet the Viltrumite knife hand lmao.
"KREGG, I CANT DO THIS. WHY IS THIS SOCIETY SO WEIRD AND NOSY?!" - Crash as she's being dragged off to god knows where.
She's super depressed in the first week of being on earth bc she can't practice medicine and that's the job she's had for centuries at this point. The reason she can't is bc then she'd be in the hospital's database and someone from the GDA could easily search her.
Also this bitch does not lay low in the slightest. She joins a metal band and has a tiktok all in two weeks of being on this godforsaken planet. Thragg is pissed but no one's found her out yet. If she can't practice medicine, she's making it everyone else's problem. But hey, that band got super popular really quick, so she's doing alright. Welcome to Earth, Dr. Beat (her tiktok username lmao). She's never had a day of media training in her life.
Finance wise, her, Anissa and Lucan are probably the most stable. The trio probably offers to do the other Viltrumites' taxes lmao.
"WHAT THE FUCK IS A TURBOTAX?!" - Kregg
"Dude calm down. It's a thing you can use to file your taxes—" - Crash
In my AU, Crash and Elix are technically together, but since Viltrumites don't understand the concept of love until they go to earth, it's more like a friends w benefits thing until then.
Because Thragg wants them to rebuild the empire, the two try to go their separate ways and fulfill his orders. Cue Crash's 2nd depression episode since coming to earth. She'd probably just cry to her bandmates. "I miss my wife, Tails" ahh motherfucker. Her bandmates then tease her about her being in love with Elix. And Crash is like 'holy shit you're right'
Crash and Elix finally decide 'fuck repopulating the empire. We're gay as shit' and get back together. Why? Bc I can't deal w angst for too long. That's why. Thragg is even more pissed but then again, theres too little Viltrumites for him to kill them.
"YOU DON'T WANNA REPRODUCE, YOU TWO ARE HOMOSEXUALS, YOU REFUSE TO MATE WITH OTHER WOMEN AND YOU BLEW OUR COVER!!" - Thragg yelling at Anissa, Crash & Elix, Lucan, and Kregg in that order.