How to get in my Nintendo account

You should contact Nintendo support. This forum is for Xbox support.

Recently my account was compromised and connected to a random nintendo switch. Now I have no clue as to how to unlink the nintendo switch from my account as the only forums I've seen about this situation if you have access to the nintendo switch. I dont have access to the switch so how do I unlink the account from my Microsoft one?

The problem with unlinking this is gonna be the fact that its your Microsoft account is linked to the switch account and not the other way around.

The linking process starts on Nintendo's end. Therefore unlinking it would also have to be done from Nintendo's end.

How can I login my Fortnite account on Nintendo and transfer it to my Xbox account?

2 sons bought Minecraft Dungeons, one on Xbox, one on Nintendo. I have 2 Microsoft accounts. Synced Nintendo account to wrong Microsoft a/c. So both sons now have same users names and can't play online together. How can I change my nintendo user
to my other Microsoft account? Thanks

By a switch I meant a Nintendo switch and when I get Minecraft invites instead of going to my Nintendo switch it instead goes to my mobile account on minecraft