Title Recommendations based on Alyssa Foley

Everything was normal for Clary Fray until she witnessed a group of teenagers murder someone. Now she's seeing things no one else can see. And her mother has vanished, leaving only a cryptic message. Clary joins the Shadowhunters, who are humans infused with angels' blood who use their supernatural abilities to wage a secret war against demons and monsters. They don't seem keen on her joining, but now that she knows what's out there, what else can she do?

Supergirl Kara spent most of her life hiding her powers. But after discovering the joy of helping people she decides to put her strength, speed, and ability to fly to good use. Unfortunately, there's a little bit of a learning curve when it comes to being a hero, and Kara has to figure that out while keeping up her secret identity.