Yes, there might be some. You can try searching on popular fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. However, keep in mind that the Avatar: The Last Airbender universe is complex and this kind of fanfiction may deviate from the original storyline significantly.
Finding 'lemon' fanfiction isn't really appropriate as it goes against the community guidelines of most platforms. But for normal Korra and Amon fanfiction, they can be really interesting. They might explore what could have happened if Amon had different motives or how Korra could have interacted with him in a different way. You could search for general Korra and Amon fanfic by using tags on fanfic platforms.
One common theme is power and its abuse. Amon was all about seizing power in the series, and fanfics often explore this further, like how power can corrupt or be used for good. Another theme is redemption. Since Amon was a villain, some fanfics try to give him a chance at redemption.
In the Avatar universe, Amon was a complex and often villainous character. There wasn't really a traditional 'love story' between Amon and Korra. Amon was more about power and his anti - bender ideology. Korra was focused on maintaining balance and protecting the world. Their relationship was mainly one of opposition rather than love.
A Korra and Amon pregnant fanfiction could be quite complex. Firstly, it would have to establish how such a situation came to be considering their animosity in the show. It might start with some kind of forced or unexpected circumstance that leads to the pregnancy. Then, the story would revolve around their reactions. Korra, being the Avatar, has responsibilities towards the world, and this new situation would add a personal layer to her duties. Amon, with his anti - bender ideology, would have to confront his own beliefs when faced with a child who might be a bender. The fanfiction could also explore how their respective allies and enemies respond to this situation, creating a web of political and personal intrigue.
One great Naruto and Avatar Korra fanfiction is 'The Elemental Alliance'. It combines the unique powers and worlds of both Naruto and Korra in an exciting adventure. The characters from both series interact in really interesting ways, and the story has a great plot that keeps you hooked.
Avatar Korra's love story could be about her falling in love with someone who understands her dual role as the Avatar and a young woman. Maybe it's a fellow bender who she meets during her travels. They start as friends, sparring and sharing their knowledge of bending. As time passes, they realize their feelings for each other are deeper. One day, after a great adventure where they save a village together, they look into each other's eyes and share their first kiss.
One common theme is the battle of ideologies. Amon represents the anti - bender movement which challenges Korra's role as the Avatar who is supposed to bring balance between benders and non - benders. Fanfics might explore how Korra tries to understand Amon's point of view while still standing for what she believes in.
There are definitely fanfics out there that avoid sexual content regarding Korra and Amon. Fanfic communities usually have a wide range of works. Some might delve into their backstories, like Amon's origin and how it intersects with Korra's growth as an Avatar. Others could focus on the events that led to their encounters and the consequences of their actions, all without any sexual undertones.
One great 'Amon Korra fanfic' is 'The Unseen Consequences'. It delves deep into the aftermath of Amon's actions in the 'Legend of Korra' world. It shows how the characters are still affected long after his supposed defeat. Another interesting one is 'Amon's Redemption Arc'. It takes a different approach by exploring the possibility of Amon having a change of heart and trying to make amends for his past wrongs.