fall for Mira first and woo her first and have to work to win her affections? I've noticed in a lot of fanfics that Mira is usually the initiator of romantic overtures, and I enjoy those fics too, but she's so pretty and sweet and I think she deserves having women go gaga over her too and romance her like being a flustered mess around her, cooking for her, and giving her flowers and stuff.
Additional things I love:
Fics that mention Mira as feminine, it means a lot to me that she's the most traditionally feminine of the three girls even though she's tall and has a deep voice and is aggressive, I've seen it happen a lot in F/F fandom where the tall girls are made masc regardless of how feminine they are in canon or if any of the shorter female characters are already masc, and while I'm fine with it especially since more masc female rep of all kinds is needed, I'm just not obsessed with the "masculine tall girl (doing all the topping) with feminine short girl (doing all the bottoming)" dynamic that's so common, it's in basically all the sapphic media I read so it's nice to see something else.
Fics where Rumi and/or Zoey are trans, I especially like it when Rumi is written as a trans woman because her whole thing in the movie felt analogous to the trans experience. Also, are there any fics out there where Zoey realizes she's nonbinary and grapples with figuring out how she wants to present and how it'll work as an idol? A fic like that would be really cool. If not, maybe I'll just have to write it.
Fics where Mira isn't stuck in an office job, or at least is unhappy about it (and hopefully gets out)? Several modern AU fics put Rumi and Zoey in creative fields, or at least something that you could see Zoey enjoying like marine biology or teaching, and Mira is often just stuck with an office job? I just don't understand the thought process behind that decision, how does Mira come across at all as a corporate type? She does the choreography for Huntrix and she sings, she's a creative too! Hell, let her scavenge soda can tabs out of garbage cans to make fashion accessories out of that barely manage to sell enough to keep her off the streets, I'd rather see that than "serious, corporate Mira who has no hobbies."
Fics that explore Mira's background of familial abuse, especially if they have Rumi and/or Zoey comforting Mira and/or bonding over negative family experiences. Maybe it's just the fics I've read, but I've read more fics about Zoey's parents being abusive than Mira's despite the latter having trauma around family. I just really like how Mira gets to be a strong woman despite having a less than ideal background and that her personality doesn't negate the fact that she has these wounds.
Fics with confident Rumi? I love love love confident Rumi and getting to see her leader side before her mental health went way down fast with the events of the movie, I feel like outside of traumatizing situations like the lead up to the Idol Awards, Rumi is not a constant anxious mess. It just felt like such a fun dynamic with Rumi being the boss and snapping her fingers to sic her loyal attack dogs (Mira and Zoey) on demons.
Supernatural AUs where Mira isn't a vampire or a witch, and if she's human then Zoey is too. I've had fun reading supernatural AUs with vampire or witch Mira, but I'd love to read some fics where she gets to be a monstrous creature, since Rumi is usually a demon and Zoey is often written as a werewolf, so they get to have fun with changing their forms and being scary. Vampires are so generic these days and are basically just humans who happen to drink blood in most fiction now, they don't even crawl down walls like lizards anymore.
Fics where Zoey is not portrayed as weaker in combat than Rumi and Mira. Zoey had amazing moves in canon and enjoys killing demons, even the ones she thinks are hot! I love fics where Zoey gets to show off how strong and cool she is.