White men: Most of the entire global population Africa, Latin America, the Middle East and Asia. There's really nowhere they can't go where they will run into any trouble regarding race. Western Europe/Canada and USA is the only region where their race wouldn't be a positive but not a negative ether

Asian men:

East Asia/south east Asia, Latin America, Africa and Eastern Europe. Are prime locations for East Asian men. The worse places for them tend to be western/Anglo countries ( but this is getting better with the newer generation)

Black men: Sub Saharan Africa, the west indie Caribbean, Balkan Europe, south east Europe and Latin America where Afro Latinos are the majority. Black men do very poorly in east Asia and the Middle East/North Africa. There's not many places where they can go where they will have have appeal due to negative stereotypes and just the difference in appearance. If they are very lightskin or biracial, then all of Latin America and south east Asia will be viable

Indian men: India, the Caribbean, much of Latin America ( depending on how dark they are) Eastern Europe and north and sub Saharan Africa. Indian men have a very bad reputation in east Asia, and most western countries and unlike East Asians this seems to be getting worse.

:Note if your attractive enough you can figuratively do well everywhere but this is mostly for average looking guys.