This is actually tangentially related to a project I'm working on, but today I got this idea from a discussion about Roma and how in the U.S. "gypsies" are often used as mascots or in names of things, basically assuming their culture is gone, sort of like the treatment of Native Americans. This made me think about Irish Travelers and other marginalized minorities with radically different ways of living from modern sedentary culture, and what if there was a white Nordic equivalent.
So, what if there were a modern day equivalent to Vikings? How would they have developed, what would they be like? I guess right now I'm picturing a North Sea version of Somali pirates, which is probably off-base.