Hi @Michael Gomez ,
which type of Azure Subscription do you have (PayAsYouGo, Free, .....)?
As far as I remember the quota for N-Series VMs in an Azure Subscription is 0.
You can create a support request to increase this quota: https://learn.microsoft.com/en-us/azure/azure-portal/supportability/per-vm-quota-requests
Maybe this is helpful as well: https://learn.microsoft.com/en-us/answers/questions/352491/nseries-vm-not-available-in-pay-as-you-go.html
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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten