I have Writers Block!

So, I'm stuck with writers block and the only thing I can do is ask you guys for help! So, you may or may not have read my book Celosia: The Elemental Chronicles: Book 1. So Celosia and Cato have found Brooke in Italy and she unexpectedly takes sides with her! But they're supposed to find five people, five of Celosia's long lost siblings. But I have no idea what countries they could live in! There's supposed to be three girls and three boys and I'm stuck! Give me some ideas please! 😭