With the exception of Italy, I've seen plenty of Asian-NonAsian (mostly white though) couples in Belgium, Netherlands, Germany, and France.
There are times you see many more Asian female with White guys. But there are also times when I all I see are Asian-men with european girls.
Overall, the ratio between the two are overwhelmingly close. For example, I just took a walk on Meir street, the downtown area of Antwerp. I must've seen at least half a dozen Asian guys with european gfs in the span of 5-10 minutes. Some are shorter than their girls, and some are plainly not good-looking guys either.
I only saw 2 other way around couples.
It seems that the myth that Asian guys do better in Europe are generally true.
However, you definitely do need language skills and charm, as others have so throughly mentioned.
If you are a decent looking guy, in decent shape, with decent height, and decent social skills. You won't have a problem finding a girl who likes you, but that doesn't mean you have no work to do!
So for all my asian bros and european sistas, thanks for having me in Europe! I'm defin enjoying it. ALL aspects of fun, I should add
