Keep in mind that I'm in my 30s. I'm not a pro at pickup/seduction, so I'm looking to gain the advantage by going somewhere hospitable to Americans.

I love Asian girls the most but I can't go to Asia, so it'd be nice if there is an Asian population and/or a bunch of Asian tourists (especially Japanese, because I understand some Japanese).

Places I'm considering:

Greece Stockholm London Poland Czech Repub Istanbul Budapest

Open to others, but not France, Italy, Spain or Netherlands.