You know travelling is part of education, I'm glad to see your choice of countries you would like to migrate to if you have the opportunity. A country like Saudi Arabia which is a Islamic populated country and that makes a choice for all Muslims wanting to visit there. And most importantly the grave of prophet Muhammad is situated there and Muslims love going there for pilgrimage. And also the two most important mosques masjidil Haram and mosque nabawi. Apart from these, their high level of economy and government friendly services makes it interesting for you wanting to live there. I wish you the best and success in the challenge