I'll give you 3! You don't have to return the same amount. Maybe.... Tomorrow's kings - Dragonforce (for the future battle and for if it ends up working out. It seemed fitting also because she seems like a really determined person), Stars - Arrows to Athens (For similar reasons, and as like, a hopeful song about the future), and maybe Angel with a Shotgun- The Cab, just because she has a lot to protect. Felt like that fit her vibes in general too.
I hope those may be helpful in some way! Perfectly okay if you don't vibe with them either ^^
I offer Heike to you, just to see what you give her :3