My Absolute Favorite Stories

The Enchanted Library When one fateful search through the Everfree Forest leads Rarity to a secret library inhabited by the spirit of an ancient alicorn princess, she realises that it may be time to start believing in fairy tales. by Monochromatic 337,147 words · 4,648 · 69
Long Road to Friendship As punishment for her crimes, the Elements have cursed Sunset Shimmer to do favors for anyone who asks. Lucky her. And then there's that other Twilight Sparkle she keeps running into... by Albi 213,109 words · 3,596 · 86
Fractured Sunlight As kids, Twilight and Sunset were best friends, but a tragic accident cut their friendship short. Years later, Twilight investigates the incidents at Canterlot High and comes face to face with what appears to be a literal ghost from her past. by Oroboro 111,688 words · 2,573 · 72

Some stories I think you should go out of your way to read, if you haven't already.

A Few More Favorites

Past Sins Can Nightmare Moon, reborn without her hate, ever escape her past? by Pen Stroke 201,810 words · 12,540 · 382
Fallout Equestria: Pink Eyes Fallout Equestria side story - A young filly begins her adventure looking for her mother. by mimezinga 134,575 words · 3,344 · 80
Sunset Reset After the Friendship Games, Sunset Shimmer decided it's time to return home. It's just that she comes back a bit earlier than expected. by LordBrony2040 396,396 words · 2,604 · 193
Principal Celestia Hunts the Undead The faculty of Canterlot High battles otherworldly horrors with style by Rune Soldier Dan 91,201 words · 1,336 · 25