Procedures for relocating personnel to Saudi Arabia

You can get married, but it takes a long time to get a green card.

Outstanding contributions, military service for Saudi Arabia, participation in wars, etc. Work hard.

Skilled migration (this is almost impossible, generally he doesn't need skilled personnel)

If you invest (even more impossible, because there is no shortage of money and you don't need China to invest)

Generally, immigration depends on whether this country is an immigrant country. Basically, Middle Eastern countries are not, and neither are Europe/Japan.

Moreover, religious countries in the Middle East have generous welfare and will not give them the opportunity to immigrate to other countries.