considering that Jaws has a harem, I'm not surprised that another of his children decided to break away from the family and become a pirate with their own crew.
my money is on Sirchetz
Don't forget the CP0, and the government hidden power. Marines are the government dog for a reason, if not Garp, Dragon and some other powerhouses could have overthrown them to form a true justice regiment
Now that you have big moms fruit maybe you can also hunt down issho for his fruit. He wont join you even if you invited him first, even if he joined his morals is a hindrance for jaw. And the fruit of that vampire in a one piece game, its a mythical zoan bat bat no mi model vampire. And also hunt down pica for his fruit for terrain advantage on land. Hunt down the chick with the luck luck fruit, the big head person that has obito like powers but only works on inanimate objects and of course the gold gold fruit
Renfavero