The best

Luna's Story: Rise of the Lunar Stallions Luna falls comatose and is revived by the love-sick kiss of one of Celestia's guards. by Aegis Shield 44,461 words · 1,169 · 32
Not My Destiny Twilight refuses to accept her ancient alicorn heritage by Smayds 37,412 words · 1,688 · 61

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For Want of a Dawn Sometimes, in order to discover one's own self, they must venture into the depths of hell. by Ciroton 225,592 words · 797 · 31
For Sonnets and Harmony There are ponies that are born great. There are ponies that achieve great things. Then there are ponies who have greatness thrust upon them. The only question for them, is what great things will they do? by The Wizard of Words 143,888 words · 852 · 32
Twidark Twilight goes darkside. by Isseus 47,512 words · 430 · 20
The Sun Won't Come Home Princess Celestia gave her life fighting against Sombra. That's what the sources say. But Twilight is convinced she was transported to another dimension. Now, fifteen years later, she succeeds in following her. by bahatumay 10,247 words · 515 · 41

The Darkest Part of the Day Twilight Sparkle loses friendship, what will happen to her? by ChaoticHarmony 1,393 words · 61 · 3
The Party is Over What happens when Pinkie runs out of party? by ChaoticHarmony 1,708 words · 80 · 2
One Last Kindness Fluttershy has always lived being kind, what happens when she grows cold? by ChaoticHarmony 1,470 words · 81 · 3
Faded Rainbows Rainbow Dash grows old. by ChaoticHarmony 1,340 words · 97 · 4

My Little Dashie What would you do if you found a Filly Rainbow Dash in a box? by ROBCakeran53 12,524 words · 13,278 · 820
My Little Dashie: A sequel My take on what happened after Dashie left us in the story My Little Dashie by ROB by ty500600 19,912 words · 1,869 · 99
My Little Dashie : A Threequel A sequel to a ty500600's sequel of ROBCakeran53's classic story 'My Little Dashie' by EpicBG 28,530 words · 837 · 41
Beyond the Dreamer's Veil Twilight enters the land of the dreamers to save Ponyville. by Lilli 9,920 words · 20 · 1