9 Characters Who Might Join The Straw Hats In Future

 #Nefertari Vivi

Vivi traveled with and assisted the Straw Hhat Pirates for almost the entire Alabasta Saga and strongly considered joining their crew after Crocodile’s defeat. Though she ultimately declined their offer in favor of working to restore her country, she remains closer to the Straw Hats than anyone else outside of their crew. She and Carue are now regarded as honorary members of the Straw Hat Pirates, at least by Luffy and the others. In the future we might see her joining up with the Strawhats.

#Marco The Phoenix

Marco the Phoenix is the former 1st division commander of the Whitebeard Pirates. He was Whitebeard’s closest confidante and his right-hand man. After the Payback War, Marco works as a doctor at Whitebeard’s home village.
The last order that Whitebeard gave him was to protect Luffy while in Marineford war so the best way to ensure that Luffy lives is by joining the crew.

#Bartolomeo

Bartolomeo, an original admirer of Luffy from the time of Loguetown and onward, admires the crew in its entirety, saying he followed all of their actions.
What job the Straw Hat Crew actually requires is a Guard who basically protects the ship during their adventure in various islands in the New World. This is emphasised by the fact that in almost every arc, the crew splits up and somebody is left behind to protect the Sunny. With Bartolomeo’s Barrier Fruit this problem can be solves if he creates a barrier around Sunny and the crew can go adventuring into the islands.

#O-Tama

O-Tama is a girl from the region of Kuri in Wano Country. She is a kasa weaver and a kunoichi in training who follows the Kozuki Family.
When Ace visited Wano, Tama formed a bond with and had faith in him. Tama wanted to go out to sea with Ace, but he told her that she was too young at the time. He promised that he would take her with him if she became a kunoichi by the time he returned and Tama waited for him since.
What if Luffy keeps Ace’s promise and takes O-Tama with him?

#Carrot

Carrot is a rabbit mink and a member of the Inuarashi Musketeer Squad. She joined the Sanji Retrieval Team to rescue Sanji on Whole Cake Island.
Carrot is loved by everyone and has the potential of becoming a Strawhat crew member. She’s very strong and has developed a great relationship with the Strawhat Pirates.
She could be the watch on top of the boat (we’ve seen her at this position multiple times already). Like the other Straw Hats members she has a dream, and it is to see the world.

#Bon Kurei

Mr. 2 Bon Kurei, is a former officer agent of Baroque Works and an okama. While he was once an enemy of Luffy’s as a member of Baroque Works, the two became quick friends, leading Bon Kurei to sacrifice himself for Luffy both at Alabasta and later at Impel Down.

#Kozuki Momonosuke

Momonosuke has similarities to Luffy such as being strong willed and having the ability to hear the Voices of All Things. He has the ability to communicate with the giant elephant Zunisha, being capable of seeing through its eyes and giving it orders.

#Caesar Clown

Caesar Clown is a former colleague of Vegapunk and the leading expert on chemical weapons of mass destruction.
Caesar’s dream is to surpass Vegapunk and become the greatest scientist in the world. Luffy’s crew at the moment doesn’t have a scientist it would make sense if Caesar became the Straw Hat scientist.
Caesar is hated by most of the Straw Hats, even more now that Wano Arc revealed that it was for the reason that 90% of the SMILEs eaters who ended up smiling for the rest of their lives that Doflamingo, Caesar, and Kaido named the fruit SMILE, cruelly mocking their misfortune.

#Yamato

Yamato is the daughter of Kaido. She is otherwise widely referred to as his son due to often presenting herself as a man as a result of her profound admiration for the legendary samurai Kozuki Oden and her aspiration to emulate him.
Yamato had met Ace at some point in the past. She had tried to sail out of Wano with him, but her father’s handcuffs kept her prisoner on Onigashima. After failing to set sail with Ace, Yamato had been waiting for his brother, Monkey D. Luffy, to arrive at Onigashima. For this reason, she chased and clashed with Luffy, ignoring his time constraints in order to talk to him, even if for just five minutes. She trusted Luffy enough to request his help in achieving Oden’s dream of opening Wano’s borders. 

What do you think?