You can use this page to find communities across Lemmy instances: https://lemmyverse.net/.

At the time of writing these seem to be the ones related to Norway:

Norge:

• https://feddi.no/c/norge
• https://feddi.no/c/[email protected]
• https://feddi.no/c/[email protected]
• https://feddi.no/c/[email protected]
• https://feddi.no/c/[email protected]

Norway:

• https://feddi.no/c/norway
• https://feddi.no/c/[email protected]
• https://feddi.no/c/[email protected]