A young Precursor guardian, forced to flee from his home by the threat of an overzealous dominion, seeks refuge amongst the stars-- hoping to answer the questions left behind by the strange disappearance of a powerful entity.
One cold winter's night, a young brother and sister decide how they'll save themselves, against the wishes of the world. They are human, and they both want to become ponies, but such weighty decisions will need effort to see through to the
When a knight and his squire get sent to a magical world, diffrent than the one they are used to, they will have to quickly adapt and learn to over come cultural, and language, problems if they are going to get back home.
Before Equestria is destroyed, Celestia sends the Elements of Harmony on a quest to find a suitable planet, and open a portal to teleport the nation though. Problem is, it's already inhabitated, and the natives are very restless.
The humans have travelled to Equestria to share their knowledge with the ponies. However, what the human scholars bring with them quickly turns out to be a bit much for the simple-minded locals.
A lonely young man takes in Shining Armor and Cadance after he finds them on their doorstep, stranded from their own world. After becoming friends, the two ponies help the man open up to a woman he's attracted to.
Would Canon Celestia and the Mane 6 countenance the Conversion Bureaus and Ponification? I think they would, but only for very good reasons. Here's one take on those reasons.
The world's most beloved veterinarian comes to Equestria to help Princess Celestia with some major cases. Of course, that doesn't mean all goes well...