If you turn the question the other way round and ask yourself about the worst places for white men you'll realize that the map above is incorrect.
You are not going to have much of a niche at all for you in some Arab countries as a white man. And even if there were girls who showed interest in you, you'd have to prepare yourself for the risk of getting into a lot of trouble. Arabs are some of the worst racists in my experience and the honour culture could have you killed if a girl's relatives found out she was going out with a white western man.
And I can't imagine a place like San Francisco have much of a niche for a white man as well, unless you have some kind of cuckold fetish.
Edit: Northern italians are not arabs.
You are not going to have much of a niche at all for you in some Arab countries as a white man. And even if there were girls who showed interest in you, you'd have to prepare yourself for the risk of getting into a lot of trouble. Arabs are some of the worst racists in my experience and the honour culture could have you killed if a girl's relatives found out she was going out with a white western man.
And I can't imagine a place like San Francisco have much of a niche for a white man as well, unless you have some kind of cuckold fetish.
Edit: Northern italians are not arabs.