Galotte is very suitable for the position that the Straw Hat Pirates just lacked. You can notice that in the current Straw Hat Pirates Group, everyone has his own position on the ship, even Jinbe, who just joined the Cake Island incident, has his own position. In these positions, Sauron is a swordsman and a ship doctor, Nami is a sailor, Wu is a sniper and a cook, Robin is an archaeologist, Francci is a boatman, and Brooke is a musician, who has just joined as a helmsman on Cake Island. These are Captain Luffy's nine partners in the current Straw Hat Pirates.
However, after reading the positions held by these nine people, do you find that there are no positions in the Straw Hat Pirates? Yes, the current straw hat pirates group lacks a position, which is a position that all ships sailing at sea must have in the era without radar, that is, the "lookout". In the era without radar or radio, standing at the top of a ship, observing the sea conditions around the ship and reporting to the captain and navigator in time is equivalent to the eyes of a ship. A ship without a lookout is basically like a blind man.
Although the position of lookout is very important, the position of lookout of the Straw Hat Pirates has been held by Solon, a road idiot swordsman, until there is no suitable candidate. But as a fighter, Sauron is a swordsman, and he certainly can't be a lookout. Therefore, the straw hat pirates must find a real full-time lookout. However, because watchmen often go to high places to observe, they need to be watchmen, and they must have strong climbing ability. As watchmen of ship eyes, their eyesight is very good.
The necessary conditions of these lookouts are completely in line with Galotte, who is a member of the fur family (Galotte has rabbit blood and has good climbing ability, while Galotte has animal blood and definitely has better eyesight than humans). Therefore, since Galotte's talent is very suitable for the lookout position that the Straw Hat Pirates just lack, then the Straw Hat Pirates will inevitably leave Galotte as a lookout.
Secondly, Galotte's strength fully meets the standard of becoming a member of the Straw Hat Pirates. As for Galotte, perhaps many people think that Galotte is very powerful only when he stares at the full moon and turns into a "moon lion" at the end of Galotte's Cake Island Incident, but it is not. Even if Galotte didn't incarnate as a moon lion, his strength was very strong. I don't know if you still remember, Luffy and others have just arrived in Galotte, Kirishima, a country backed by elephants, after ending the battle between Dres Rosa and Domingo.
Due to the lack of communication in advance, Galotte attacked Lufei and his party who just entered Zou Island as intruders, and Galotte had several fights with Sauron. Although Galotte only had a simple contact with Sauron in this short battle, she was not easily killed by Sauron in front of Sauron, who was not weaker than Luffy, which is enough to show that Galotte may not reach the level of Sauron or Shan Zhi, but it should be similar to Francci and Brooke. Moreover, we should know that Galotte is already so tough under normal conditions, and it would be even more horrible if it were replaced by Galotte in the Cake Island incident.
Recalling the white figure at the beginning, the whole fleet was paralyzed by one person, shuttling between the pirate aunt fleet led by Dafu. Even One Piece's cadre "Charlotte Daifuku" took Galotte, and in this "Moon Lion" state, her strength has definitely reached the level of 7Wuhai (without Hawkeye, White Beard II and Galotte with such great strength, she is definitely qualified to be one of the cast members of One Piece in the future.
So since Galotte's strength has reached the standard of boarding the Straw Hat Pirates, and her talent and ability are very suitable for the Straw Hat Pirates, Galotte, to join the Straw Hat Pirates and become Luffy's tenth partner, there is basically no problem.