In this fanfiction, Luffy might be initially in awe of Whitebeard's presence. He could challenge one of the crew members to a friendly spar, like Ace perhaps. And they might share stories about their adventures at sea.
Obviously, they will support Luffy all the way. He is their captain, and they have complete faith in him. They have been through so much together, and they know Luffy's strength and determination.
The entire crew of Gold Roger could potentially be allies in a way. They are a tight - knit group. The OC could bond with different members over shared interests. For instance, the cook might share food with the OC and in return, the OC could help him find rare ingredients during their travels. This sense of community within the crew can be a strong support for the OC.
An OC who joined the Gold Roger crew later in their journey. This OC has a different view on piracy compared to the others. The story could be about how this OC's ideas start to influence the crew, causing some internal conflicts at first but eventually leading to a new and more united way of operating. This could show the diverse personalities within the crew and how they grow together.
I think Luffy and Whitebeard himself would be the most interesting. Whitebeard is a legendary figure. Luffy would be eager to prove himself in front of him. And Whitebeard would see the potential in Luffy. Their exchange could be filled with wisdom from Whitebeard and Luffy's naive yet charming responses.
Naruto's unique abilities would also change the crew's dynamic in combat. His Rasengan, for example, could be a powerful weapon against other pirates. This would make the crew more formidable and also give Naruto a certain status within the group. He would be seen as someone with great potential and power, and others would look up to him for his skills.
Female Luffy's personality would bring a fresh energy to the Whitebeard crew. If she has a similar sense of humor to the male Luffy, she would keep the crew laughing during long voyages. Her impulsiveness could lead to some unplanned but exciting adventures for the crew. Also, her empathetic side, which might be more pronounced as a female, could help her better understand the emotional needs of the crew members. For example, she could be more in tune with a crew member who is homesick or feeling down, and be able to cheer them up in a more nurturing way than the male Luffy might.
Fem Luffy would probably bring a lot of energy. She might be more empathetic in some ways compared to the original Luffy, which could help in resolving internal crew conflicts. For example, if two crewmates have a disagreement, she could use her charm and understanding to smooth things over.
It's not very common. The Voltron crew is usually busy with the production and development of the official content. However, if they do come across it, it could be an interesting peek into the fans' minds.
Well, the crew would probably be on the edge of their seats. Luffy is known for his unpredictable and powerful fighting style. Katakuro, on the other hand, has his own set of unique abilities. Maybe the crew would be cheering Luffy on, shouting words of encouragement. They might also be worried at times, especially when Katakuro gets the upper hand in some moments of the fight. It would be a very intense moment for them to watch.