The combination of the Doctor's time-traveling adventures and Thor's mythical powers creates unique and exciting plotlines. The interaction between these two very different characters can be highly entertaining.
One interesting aspect could be seeing how the Doctor's intelligence and wit complement Thor's raw strength and heroic nature. Also, the different worlds and timelines they could visit together would offer a fresh perspective for fans of both franchises.
There are many! Like the combination of their unique detective skills and time-travel adventures. It creates a really exciting and unpredictable story.
There could be lots of fun crossovers! Like seeing the Doctor's time-traveling skills combined with the Avengers' superhero powers to take on epic threats.
A possible crossover idea is that a powerful villain from the Thor universe, say Loki, decides to use the chaos of the Naruto world to his advantage. Thor and Naruto then have to put their differences aside, as Thor comes from a world of gods and Naruto from a world of ninjas, and combine their strengths to defeat Loki and his new - found allies in the Naruto world.
One possible plot could be that Thor somehow gets transported to the Inuyasha universe. Thor's powerful hammer and lightning powers would be a huge asset or a source of conflict. Maybe the demons in the Inuyasha world see Thor as a threat or a powerful ally to be manipulated. Inuyasha and his group might initially be wary of Thor but then realize they can work together to defeat a common enemy, like a powerful demon that is causing chaos across the land.
The combination of different power systems. Naruto has his chakra - based jutsus and Thor has his godly powers. Seeing how these powers interact is fascinating.
One plot idea could be Thor landing in the Viking era and being mistaken for a god. The Vikings might try to either worship or challenge him. Another could be a Viking warrior being chosen by Thor to help him on a quest in Asgard. Or perhaps Thor has to team up with a group of Vikings to fight a common enemy like a giant frost monster.
One interesting plot could be that Thor somehow ends up in the Fairy Tail world. He might mistake the Fairy Tail mages for powerful Asgardian-like warriors and try to team up with them. Maybe he could help them in a battle against a really strong dark guild using his thunder powers, which would be a spectacular sight combined with the Fairy Tail magic.
One idea could be that Thor somehow ends up at Hogwarts. Maybe he's on a mission in the wizarding world and his Asgardian magic interacts in strange ways with the magic of Hogwarts. For example, his lightning powers could cause some chaos during a Potions class when it accidentally zaps a cauldron.
It could be the combination of different universes and characters. Maybe seeing how the Doctor interacts with characters from other shows in unexpected ways.
One interesting concept could be the Doctor meeting characters from other science - fiction universes. For example, if the Doctor were to cross over with the Star Trek universe, it would be fascinating to see how the Doctor's time - traveling and alien - facing skills would interact with the Star Trek crew's exploration and scientific knowledge.