Young Dustin Folio is severely injured while on a field trip with his classmates, and once he awakes, he finds himself nursed back to health, only to find himself forever trapped in a room by Princess Celestia, forbidden to interact with the outside world.

A strange blue portal opens up in Equestria and our six heroes are captured by the strange bipedal creatures from the other side, what will happen to them? can they escape? Will they ever make it back to Equestria? Only time will tell. Crossover with Portal.

It's not every day you wake up with a pony in your own bed, but for a (not-so) lucky brony his life gets changed after waking up with a certain cyan pegasus sleeping next to him...

Twilight's cutie mark is fading, and Celestia sends her a series of lessons to rekindle her passion for magic- and for friendship. Twilight must study the magics her friends possess, as well as casting a serious eye on her own gifts.

This is technically a sequel to "Fixing Up Miss Smartypants", so I totally recommend that you read that first. It's set five years later.

When a human is thrust into Equestria on a whim, he struggles to fit in with the locals of this strange land and tries to figure out how to get home, making new friends along the way.

Twilight Sparkle has been betrayed by Celestia, all her friends brutally killed in front of her eyes after the young unicorn woke up one morning with wings. Celestia had realized that Twilight had been chosen by the Elements of Harmony to replace Luna and herself as the leading force of Equestria, and correctly surmised that the other Elements would have followed shortly after and become a united force the current princesses couldn’t hope to defeat if they chose to contest their position for the throne. Even though Twilight doesn't want to acknowledge her destiny as Equestria's next chosen ruler, the new alicorn cannot let the tyrants she has now seen Celestia and Luna really are remain in power.
Armed with only the Elements of Harmony and her burning rage, Twilight sets out to avenge her friends and free Equestria from Celestia and Luna's tyranny.
The fate of Equestria, as well as the balance of this entire universe, hinges on Twilight's success.

It's almost Mother's Day. Scootaloo comes to Rainbow Dash with a startling question, but then backs off, feeling ashamed she asked it. Rainbow Dash, taken off-guard by the question, starts to question both herself, how she feels about Scootaloo, and about her past...

The Princesses find an alien creature barely clinging to life at the scene of a terrifying crash. Can the Combined Power of the Elements of Harmony save it, or more importantly, should they save it? Will the arrival of this strange creature tear Equestria apart?

TV Tropes
https://tvtropes.org/pmwiki/pmwiki.php/FanFic/Article2