I agree with you, I think the Saudi Pro League is the best option for Pogba. He can earn a lot of money there and play in an easier league. Also, Europe's elite leagues have many question marks for Pogba. But the Saudi Pro League can hide his flaws. On the other hand, the good scenario holds many hopes for Pogba. But if things don't go well for Pogba in Arabia, his career could suddenly take a turn for the worse. Whatever league he plays in, he should make the most of this opportunity.
If there are no big teams in Europe to make an offer, Pogba is better to move to Saudi teams. Sure, Saudi teams will give a higher salary for Pogba. They also probably guarantees Pogba to be the main player there. Pogba is still in prime age, he deserves to play regularly in the main lineup. Al Nassr and Al Ahli seem to try signing a new top midfielder because they still have lack of top players in their midfield line. Meanwhile Al Hilal and Al Ittihad seems to have enough top players in their midfield line currently. By the way, if Pogba can play well in SPL, he may get another chance to play in France national team anymore.
Although he is good player but his scandal will makes him hard to earn trust from big teams in Europa and based on the experience of the players who has the same cases as Pogba they usually will be difficult to find new clubs even those players eventually has decide to retired because there were no clubs who willing to hire their service and it think similar condition will be happened to Pogba because i am sure there are no big clubs will want his signature and i do agree with you that if Pogba still want to playing i think he should be considering the offers from Saudi Pro League clubs and in that league he must prove that he is able to bounce back and return to his top performance again