One possible plot could be that Harry Potter discovers a magical connection to the time of King Arthur and the Knight of the Round Table. Maybe he is transported back in time and has to learn the ways of the knights in order to gain a new power or knowledge that can help him defeat Voldemort in his own time.
The plot might involve a prophecy that links Harry Potter to the Knight of the Round Table. There could be a hidden chamber in Hogwarts that has artifacts from Arthurian times. When Harry discovers it, he is magically bound to a quest. This quest could be to restore the honor of the knights which has been somehow tainted in the wizarding world. Along the way, he meets characters from both the Harry Potter universe and the Arthurian legend. He has to use the skills he has learned as a wizard and adapt to the chivalrous code of the knights. He might even have to face a new dark wizard who is trying to use the power of the Arthurian magic for evil, and Harry has to stop him using both his wizarding skills and the newfound knowledge of the knightly ways.
Well, Ron would likely be in awe of the knights at first. He might be a bit clumsy around them, but he would also be very loyal to Harry as they interact with the knights. The knights themselves would probably be intrigued by the magic of the Harry Potter world. They might see Harry as a young hero in the making, similar to the heroes of their own time. They could teach Harry and his friends about honor and chivalry, while Harry and his friends could show the knights some new magical spells and potions. For example, Hermione could introduce them to the concept of the Time - Turner, which might be very different from any magic they know.
Another idea is that the Cyber Knight is an experiment gone wrong in a secret magical research facility. He escapes and finds himself in Hogwarts. There, he befriends Harry Potter and his friends. They initially don't trust him because of his strange appearance and abilities. But as they get to know him, they realize he can be a great asset in their fight against Voldemort. He could use his cybernetic vision to detect hidden Death Eaters or his enhanced strength to help in battles.
Well, it might be a really wacky plot. Maybe Harry Potter is in a magical classroom where he has to use his singing skills to remember the periodic table. He could be competing with other Hogwarts students in a sort of magical science fair where the best singer of the periodic table elements wins a special potion or a magical item.
One possible storyline could be Naruto being transported to the world of King Arthur. He might use his ninja skills in a different way there. For example, his shadow clone jutsu could be used to confuse the enemies in battles against the dark forces that threaten Camelot. He could also form strong bonds with the knights, teaching them some of his values like never giving up, which is very Naruto - like.
One possible plot could be that Harry and Snape are magically forced to hide under a table during a chaotic event in Hogwarts. Maybe there's a rampaging magical creature loose in the classroom and they have to stay hidden. Harry is initially distrustful of Snape as always, but Snape ends up using his skills to protect Harry from the creature's detection, leading to a begrudging respect between them.
There might be a fanfiction where the magic of Harry Potter is combined with the legend of the Knights of the Round Table in a completely new way. Maybe the Sorting Hat is discovered in Camelot and it starts sorting the knights into Hogwarts houses. This could lead to some really interesting interactions between the knights, like Lancelot being in Gryffindor and having to deal with his newfound Gryffindor traits.
There were many novels about the Lost Princess and the Knights of the Round Table, among which the more famous ones were Fate/Stay Night and Magical Girl Little Yuan.
In some fanfictions, they merge through magical artifacts. For instance, the Sword in the Stone could be related to the Sword of Gryffindor. Maybe the two swords have a shared origin or power, and this connection brings the two worlds together. Characters from Harry Potter might be drawn to Camelot to discover more about this connection.
The size of the dining room and the number of people in the family had to be taken into account when choosing a round table. According to the information provided, the round table had a higher requirement for the size of the restaurant. It was best to be close to a square or large enough. If the dining room was small, a long table would be more suitable. In addition, the number of people in the family was also a factor to consider when choosing a round table. If there were only two or three people, it would be a little awkward to have a big round table. If both parents lived together or had relatives and friends who often came to eat at home, a big round table was the first choice. As for the size of the round table, the diameter of the small round table for 2-3 people was about 1 meter, the diameter for 4-6 people was about 1.2, and the diameter for 6-8 people was about 1.4. In short, the size of the restaurant and the number of people in the family would determine the right round table.
The significance of the Round Table was multi - fold. Firstly, it was a physical representation of equality. All the knights could sit around it without any hierarchical seating arrangement. This was crucial in Arthur's court where chivalry and honor were highly valued. Secondly, it was a place for the knights to come together and share their stories, wisdom, and plans. It was the heart of the Camelot community of knights, promoting unity and cooperation among them.