Well, having all the summoning contracts might also be a burden. He has to manage and keep good relations with all the different summon clans. If he fails to do so, he could lose their support. Also, it might be overwhelming to keep track of all the different summons' abilities and needs.
A common element is the discovery of the contract. It's often by accident, like Naruto finding it in a hidden place or during an adventure. Another element is the new abilities that come with the summons. For example, the summons might have special powers that Naruto can use to fight stronger enemies.
One common plot element is the discovery of the dragon summoning contract. Usually, the protagonist stumbles upon it by accident or inherits it in some way. Another element is the training to be able to summon the dragons effectively. This often involves facing difficult challenges and learning about the dragon's nature.
Yes, there could be. Many fanfictions explore different scenarios with new characters related to the original ones. It would be interesting to see how Naruto's son would interact with the dragon summoning contract, perhaps inheriting some of Naruto's abilities along with new dragon - related powers.
One common theme is power - the dragon gives Naruto an extra boost of power which he uses to face stronger enemies. For example, in many stories, the dragon's strength is combined with Naruto's own to defeat Akatsuki members.
Maybe the dragon sword has the ability to absorb chakra. When Naruto is in a fight, he could use this to his advantage by draining his opponents' chakra through the sword when it makes contact. This would weaken his enemies and at the same time, the absorbed chakra could be used to power up the sword's other abilities.
Maybe it would be an ice - dragon. This would be an interesting contrast to Naruto's usual warm - natured self. The ice - dragon could have blue - white scales and the ability to freeze things with its breath. It could also create ice - bridges or walls in battles, providing a unique strategic advantage for Naruto.
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.
In some fanfictions, Naruto might obtain the dragon sword through a special quest. Maybe he stumbles upon an ancient temple during one of his missions where the sword is hidden as a powerful artifact, guarded by some kind of magic or traps. He overcomes these obstacles using his ninja skills and determination, and thus gets the dragon sword.