where can I find unstructured japanese style clothes?

I’m interested in trying the style I see some japanese men have, with lots of unstructured clothes that drape beautifully. Like in this image. I have wide shoulders so I think this kind of style would work for me, and in any case, this style speaks to me and I wanna try it!

Any brands or search terms I can use? I live in Sweden and don’t really see this kind of style here..