What are the best ways of adhering to 3-2-1 rule in Veeam for Azure? For instance,
if you backup into a repo in the same region, what's the recommended way to get another copy somewhere else? (i.e. to another region - perhaps have two repos or single repo with GRS repo?)...
what's the best ways to get "another media" included in Azure?
The best way would probably be to use backup copy jobs from Veeam B&R to take your backups completely offsite. Alternatively, consider using the immutability option to "protect" your backups.
I would just use GRS with immutability and call it a day. If you really want additional copies outside of the Azure ecosystem, drop a VBR and add copy jobs to wherever you like as Vitaliy explained above.