Are there communication agencies or visual branding/visual communication ones?
As Denmark is generally world renowned for their design aesthetic, a side effect are communication agencies based in Copenhagen. Here are a few lists to get you started:
And here's a blogpost on general job hunting tips in Denmark I really like: https://www.howtoliveindenmark.com/working-in-denmark/finding-a-job-in-denmark/
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and locals who are proud to help their new neighbours out.