One interesting concept could be the unique abilities that come with the shifter bloodline. For example, a shifter might be able to transform into a powerful and rare creature, giving them an edge in battles. Another concept could be the origin of the bloodline, whether it was a gift from the gods or a result of some ancient experiment. Also, the social implications within the Naruto universe for those with the shifter bloodline can be fascinating, like how they are treated by other clans.
I'm not sure of specific titles off the top of my head, but you can start by looking on popular fanfiction websites. Try searching for tags like 'Naruto', 'shifter bloodline', and 'highly rated'. You might also join Naruto fanfiction communities on social media platforms and ask for recommendations there. Some readers might be able to point you to some great stories with shifter bloodlines.
Well, I've seen a few. They usually take Naruto's ninja abilities and combine them with the Titan - shifting powers in interesting ways. For example, Naruto might use his shadow clones while in Titan form. However, the quality can vary a lot. Some are really well - written with detailed character development and exciting plots, while others might be a bit lacking. So it takes some time to find the good ones.
There are also fanfictions where a bloodline is created through some sort of experimental jutsu. For example, a bloodline that allows the user to transform into different elements at will. This would give the character an edge in combat as they could adapt to any situation by changing their form.
One common theme is power struggle. Naruto has to learn to control his new Titan - shifting powers while still dealing with his existing ninja powers and the challenges in his own world. Another theme could be identity crisis, as he becomes something so different from what he was before.
The knight bloodline could be integrated as a foreign power that was brought to the Naruto world long ago. Maybe a group of warriors from another dimension with the knight bloodline came and settled, and over time their bloodline got diluted but still resurfaces in certain individuals.
He might use some special jutsu or seals. For example, he could use a sealing technique to suppress the signs of his bloodline. This way, others wouldn't be able to detect it through normal means like sensing chakra.
It could also be part of a strategic move. By hiding his bloodline, he can surprise his opponents in battle. They would underestimate him based on not knowing about his true powers, and then he could turn the tables on them when the time is right. This gives him an edge in combat situations.
It expands the world - building a great deal. The Naruto world already has its own complex system of chakra, ninja clans, and villages. Adding Titan shifters brings in a whole new set of rules. For instance, the walls and cities in the Titan - shifter world need to be considered. How would Konoha adapt to having to build such defenses? It also changes the power balance, as Titan shifters can be extremely powerful, so other ninja villages might react differently to a village with Titan shifters in it.
Well, one implication could be enhanced physical abilities. Dragons are often seen as strong and powerful creatures in many mythologies. So Naruto might have greater strength, speed, and endurance. He could also have some sort of elemental control related to dragons, like breathing fire or manipulating wind in a more dragon - like way. Maybe he could even fly in some forms, as dragons are known for their flight ability.