I think we should actually go overboard. Let Technor give her some therapy, while letting her hang out with Max, Vanessa, and Lizzie. I mean, for Lizze's PA, we were notified that Janna's mental help got a bit better. So having her hanging out with her friends may just keep helping her get into a better headspace. We could also try to recruit Kitsune, as her card seems to imply that she knows Janna, and may have a similar personality to her... though, that's nerely conjecture on my part. We could also bring all of the Doof Troop + Lizzie(/Edot: Or Kitsune if we recruit her and she's friends with Janna) to the auction, lot juat as a way to boost rolls, but to let them hang out in New York and look at all the cool sights, both magical and mundane.
I'm behind therapy, but don't think taking her off duty is good for her mental health. Taking her off duty after she told us everything will tell her that we don't respect her as someone who can help us in magic, and that we have mentally switched her from someone with an agency to a kid that needs to be protected. Xandadu this turn will give her some experience with Khan, and let her know that he have some very powerful allies. Send her to the magical auction next turn will give her some Doof troop time. Hopefully, after that, we will have Mal and can afford to take her off for Star and mental health. But I really don't want to bench her after she was emotionally honest with us. That's the sort of thing that makes her feel like she can't be because it causes us to treat her with kid gloves.
Seeking Star to kill her? Not so much- Star personally has no real interest in perpetrating genocides. Toffee may desire to kill her to wrap up a loose end, but that's not nearly as good a reason to kill someone as "in order to liberate my people."
Honestly, Stars arc on monster's is
really good*. She starts generically racist but without real conviction, and quickly becomes uncomfortable once an unbiased observer points it out to her. From there, we can see her start to see the cracks in the kingdom, and begin to act somewhat anti-racist, wanting the kingdom of Mewni to be more welcoming of monster, but not really questioning the structure itself. By season four she has racialized enough that she hands the crow over to Eclipsa, a previous Mewni queen who married a monster. It sort of acts as her last grasp of Mewni, justifying the abdication because she's the 'rightful queen' (as if the dependency has any actual value when we are later shown the original queen was picked via enie-meene-mine-moe). Finally, in the season finale, she realizes that there's no saving the kingdom, that racism has always been part of the structure, and her primary opponents are the kingdom's citizens and those who set up the system. She cleaves away their magic, destroying the kingdom at its roots. (Gigabraint akes on 'actually that genocide' aside)
Like, the series unfortunately surrounds this core story with a lot of filler episodes and a shipping of the male MC with every female despite the fact that he's going to get with Star being plainly obvious in a way that feels like a Japanese harem comedy. Shame, because a tighter script less filler, like a 10 episode a season netflix show and it really could have been one of the truly great shows of the decade.
Also on a personal note, loved Meteora and I will stand her if we get her. Sure she's a soul-sucking bad guy. But seeing someone find out as an adult that they have been brainwashed to believe they are a something they aren't by an asshole society that doesn't approve of them, and then watching them get pissed and wreck seven kinds of hell, before ending on an opportunity to live their life the way they should have in the first place. For some reason, I find that really compelling, can't imagine why.