Here is a link to an interesting article about the Nordics of Europe, stating that the Scandinavians are the earliest Europeans. The article is ‘of course’ filled with the opinions of the like of David Reich, but is still not completely ruined by that.
You should read this with Marie’s claim about the Neanderthals in mind, and my claim that (very generally speaking) the more Nordic looking you are, the more Neanderthal you are.
Here is the link.