I have looked for videos in Cologne, Germany so I can understand the typical situation.
2015 New Year's Cologne, Germany
A British 17 year old reports to the BBC
Long video with a person recording from farther away and facing, I believe, the train station. Appears to be mostly darker skinned males. archive.org link | archive.is link
Short video with German news narration (English translation) from a lower view of the previous video. Appears to be mostly darker skinned males. archive.org link | archive.is link
other years of New Year's Cologne, Germany
New Year's Fireworks in Cologne from an apartment terrace, uploaded Jan 1, 2015 archive.org link | archive.is link
You must watch out, where it can the firework will fly and accidentally hit you. The people fired out together the fireworks near the Köln Dome, Germany. Taken on 31th December 2011. Appears to be mostly a mix of lighter skinned individuals. archive.is link
Fake Videos and Pictures
Be careful what you look for. For example, I found this video from 2010 which seems to be from Britain with a renamed title and description. archive.is link