There could also be a bit of a comical interaction. Luffy might try to challenge Dragon in some way, like a friendly spar or a test of wills. And Dragon, amused by Luffy's bravado, would play along while also subtly assessing Luffy's strength and potential.
A cool plot would be when the Whitebeard Pirates meet Luffy while he's on a quest to find a rare Devil Fruit. They too are interested in that Devil Fruit for some reason. Instead of fighting over it, they decide to team up. Luffy's unique perspective and the Whitebeard Pirates' experience combine to create an epic journey filled with challenges and new discoveries.
In fanfiction, when the Whitebeard Pirates meet Luffy, they might initially be cautious. Luffy's reputation as a rising star in the pirate world could make them curious. Maybe they would test his strength. For example, some might engage in a friendly sparring match with him to see what he's made of.
They might have an epic battle to test Luffy's growth. Shanks could see how much stronger Luffy has become and be proud. Maybe Luffy will show off his new Haki abilities.
In fanfiction, when Sabo and Luffy meet again, they might have an emotional reunion. They could share stories of their adventures since they last saw each other. Sabo might show off his new skills or powers, and Luffy would be excited to see his brother again. They could also plan new adventures together, vowing to face any challenges as a team.
Well, first of all, it's completely out of character for Luffy. He is a character full of innocence and is mainly focused on his adventures and his crew. Such a fanfiction misrepresents his personality.
"The first is best not to meet" is a poem from the Tang Dynasty poet Wang Zhihuan's "Climbing the Stork Tower". The whole poem is as follows:
The white sun is leaning against the mountains, and the Yellow River flows into the sea.
I want to see a thousand miles and climb another level.
The wind and rain in the pavilion at night, the rooster crows, the mountain is clearer.
When the truth comes out, I still hear the names of ancient people.
First, it's best not to meet the participants.
What night will we spend with this candle?
How long can I be young and strong? My hair has turned gray.
Half of my friends are ghosts, and I cry out in alarm, my heart burning.
How can I know that I'm going to the Scholar's Hall with twenty heavy loads?
Once upon a time, the unmarried children of the monarch suddenly came together.
Yan Hui smiled and asked where the guest came from.
Today I'll listen to your song and drink before I leave.
You sing, oh, you talk to yourself, and your laughter gradually disappears.
When the water falls, the sound is gone, and the light of the tall building shines alone on the stage.
On the night of the third day of September, the dew was like a real pearl and the moon was like a bow.
If life is only like the first time, what is the autumn wind sad painting fan?
It is easy to change the heart of an old friend, but the heart of an old friend is easy to change.
The words of Mount Li are gone. In the middle of the night, tears fall and bells ring. I don't complain.
How can it be like the wish of a young man in brocade to be together?