I'm not sure if there are specifically 'popular' ones as it's a rather niche crossover. But you could search on fanfiction platforms and see if there are some well - received ones based on the number of reads and reviews.
In a 'naruto x avatar lemon fanfiction', it might involve Naruto using his ninja skills in the Avatar universe. For example, his shadow clone jutsu could be used in creative ways to help the Avatar in battles. And they could explore different elemental powers together, with Naruto's chakra-based techniques interacting with the Avatar's bending abilities.
The plot might involve Naruto and Ty Lee teaming up to fight against some common enemy in the Avatar world. Along the way, they discover new powers within themselves and in each other. The 'lemon' part could be expressed through their growing attraction, with some passionate moments shared during their journey, like a stolen kiss during a dangerous situation or a tender moment by a campfire.
You can start by looking on fanfiction platforms like Archive of Our Own (AO3). It has a vast collection of Avatar - The Last Airbender fanfictions, and you might be able to find some Zuko x Reader stories there. Another option is FanFiction.net, although the content quality can vary more widely on this site.
There are various Naruto avatar lemon fanfiction out there. Some might revolve around the idea of Naruto having an avatar - like power and how it affects his interactions with other characters, especially in a romantic or tense context. But finding good ones can be a bit tricky as not all platforms allow or promote such content due to its nature. You could try looking in more specialized fanfiction communities where they have specific rules for this type of work.
I'm not sure specifically which 'Naruto Avatar Lemon Fanfic' to recommend as the 'lemon' aspect might imply some inappropriate or fan - created content that may not be widely accepted. However, there are many great Naruto and Avatar fanfics in general on platforms like Fanfiction.net. You can search for crossovers between Naruto and Avatar there and find some high - quality ones.
Well, I'm not sure if there are many such fanfictions. But it could be really interesting. Maybe it would involve Naruto and Ty Lee having some kind of adventure in the Avatar world, with the lemon aspect perhaps adding a bit of romantic or spicy undertones. However, it might be a bit of a stretch to combine these three different universes in a single fanfiction in a believable way.
Rather than seeking 'lemon' fanfiction which is not suitable, consider exploring the vast world of Naruto and Avatar crossovers that are based on adventure, character development, and cultural exchanges. You might find a story where Naruto and Aang team up to fight a common enemy, which can be much more engaging and positive than any inappropriate fanfiction.
Well, in some storylines, the characters might face unique challenges in a combined Naruto and Avatar world. For example, a character from Naruto could learn about bending from the Avatar world and use it in a creative way to overcome an enemy. However, keep in mind that fanfiction can vary greatly in quality and content.
I'm not really into that specific type of fanfiction. However, you can try looking on some well - known fanfiction websites like FanFiction.net or Archive of Our Own. They have a large collection of Naruto fanfictions, and you might be able to find something related to avatars and harems there.