I'm an Asian author, how should I portray my White characters?

HorsesPlease19
Artist -

РОИССЯВПЕРДЕ
In the Internet, there are many websites about how to write characters who are from different peoples, from Africans and African Americans, to Indians, Romani, Jewish people, Native Americans, Polynesians, Middle Easterners, and so on. Many of them usually have tips on how to research about their culture and how not to use offensive tropes and stereotypes.
 
For fun, I’d like to ask about suggestions for the White or European characters in my stories. I may be an Asian dude, but I think White people are very pretty, especially blonde ones.
 
Due to a lot of time spent on the Internet (especially Yahoo Answers and paranoid blogs like Breitbart’s now-lost comment section), I once thought that people online expected all White characters to be superhumans, gods, or Mary Sues, whereas any weak or villainous White characters would make their author an “anti-White”.
 
It’s also because as a Malaysian, I rarely ever meet actual European people in real life, as they tend to work in the bigger cities.
 
So, what would be your suggestions on how to portray and write about my White characters?
 
If you’re interested, my White characters tend to be diverse, ranging from:
 
a drummer from a Norse planet  
an awkward farmboy  
several angry mutants who see themselves as children of the Gods  
a brutish Norse girl who loves skateboarding and hates dresses  
some pretty tomboy and her gamer boyfriend  
a time-traveller  
a miserable lad who deals with angry demigods  
a drunk film star , a former racer, who hates his job  
a clumsy and rude fisherwoman with super strength
 
The farmboy and the fisherwoman may be from some human-alien hybrids, but they’re still considered White because they look like Europeans.
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