Here's some quick code to get a list of your Storage accounts from a cloud shell in the Azure Portal.
az storage account list --query "[].{Name:name, Redundancy:sku.name}" --output table
That's it!
It will output something similar to this:
mystorageaccount1 Standard_LRS
mystorageaccount131 Standard_RAGRS
By default this will list everything for the subscriptions you have checked to show resources for in the portal.