There is not much yet. We are still starting and we have not even advertised this, waiting to finish some important sections like events and DMD2 integration with sync.

Unfortunately, I think you will find that norwegian riders normally wont share tracks openly. Mostly due to the risk that overusing areas will lead to more barriers and bans. The only freely available tracks is the TET. You may have some luck with getting something privately from users, but probably on the conditoin that you dont share them with others.