A cool concept could be a changeling OC who is a hybrid. Part changeling and part something else, like a unicorn or a pegasus. This would give them unique powers and a different perspective. They could be on a quest to find their place in both the changeling society and the pony society. They might face discrimination from both sides at first, but through their own strength and the friendships they make, they could prove that they are more than just their mixed heritage.
Maybe a changeling OC who gets lost in Equestria during a mission and is found by one of the main ponies. The OC could initially be distrusted, but as the story progresses, they form an unlikely friendship. The OC could then start to learn about friendship and love from the ponies, which would change their view of the world and themselves. For example, they could start to see that there are better ways to get the energy they need than stealing love.
One interesting 'My Little Pony Changeling' fanfiction could be about a changeling who decides to break away from their traditional ways and tries to befriend the ponies in Ponyville. They might struggle with their identity at first but eventually find acceptance.
You could create an Alicorn OC who was born without wings but has an incredibly strong horn magic. She is shunned by some of the other Alicorns at first. But through her determination and kindness, she proves that she is just as worthy. She might go on a journey to discover the origin of her unique situation and along the way make friends with all kinds of ponies.
One idea could be a female OC who is a talented artist in Equestria but is too shy to show her work. She then meets one of the main ponies like Twilight Sparkle who encourages her to share her art with the world. Another could be a female OC from a different land who comes to Equestria to learn about friendship and has to overcome cultural differences.
One idea could be to explore a Changeling OC's struggle to fit into human society while hiding their true nature. For example, they might have to constantly lie about their abilities and origins, which could lead to some tense and dramatic situations.
Well, an OC who is a talented artist but is too shy to show their work could be a great plot. The ponies in Ponyville discover the OC's talent and encourage them to share it. Or an OC with a time - traveling ability. They accidentally mess up the timeline in Equestria and have to work with Twilight and her friends to fix it.
Well, an interesting plot could involve an OC who discovers she has a hidden talent for magic in the human world of Equestria Girls. She then has to hide this from her non - magical friends while also trying to figure out why she has this power. Maybe she teams up with the main characters to face a new threat that is using dark magic. She could also have a special connection to an item from Equestria that holds the key to defeating the threat.
One interesting storyline could be about an OC pony who discovers a hidden magic within themselves and has to learn how to control it to save their friends. Another might be an OC from a different land coming to Equestria and having to adapt to the new culture while also bringing something unique to it. And there could also be a story where an OC pony has a dream of uniting all the different pony tribes through music or art.
One popular 'My Little Pony Changeling Queen' fanfiction is 'The Changeling Queen's Redemption'. It shows the Changeling Queen in a journey of self - discovery and trying to change the ways of the Changelings. Another one could be 'Changeling Queen and the Magic of Friendship' which focuses on how she interacts with the ponies of Equestria and learns about the power of friendship.
One idea could be to create an OC who is a unicorn with a special power related to time manipulation. This OC could accidentally get stuck in different time periods in Equestria and have to rely on the mane six for help while also learning about friendship in each era.
One idea could be a story where Sonic accidentally runs into the My Little Pony world. He could team up with Twilight Sparkle to stop an evil force that's threatening both their worlds. Maybe a chaos - causing villain has found a way to cross between the two realms.