This is an idea that wouldn't leave my head, inspired by Fairy Slayer's "Mommy Nearest," Aldea Donder's "Alicorn," SoundofRainfall's "Play" and RainbowDoubleDash's "Lunaverse"
Alternate Universe: Instead of Twilight Sparkle, Princess Celestia made Rainbow Dash her personal student instead! Follow her through the events of the 1,000th Summer Sun Celebration. A reimagining of "Friendship is Magic"
Alternate Universe: Filly Rainbow Dash has just performed her Sonic Rainboom when she gets a visitor
AU Dashverse: The Crystal Empire has returned and the foals of Equestria have gone missing!
AU: A retelling of "Sonic Rainboom" episode, set in Dashverse (A universe where Rainbow Dash became Princess Celestia's student. A follow up to "Rainbooms and Royalty")
Dashverse AU: The Canterlot Wedding is on and a changeling scheme to subvert the Elements of Harmony is underway! Can Rainbow Dash find the imposter?