An Azure relational database service.
Hi,
Due to limited capacity many subscriptions are restricted from creating Azure SQL Database in the most popular regions. What you can do is try to create your database in another region (e.g. West US 3).
If your account is paid you may create a free Service and subscription limits (quotas) request and request access to your preferred region. Assuming they approve your request you would then be able to create your Azure SQL Database in that region.
Request quota increases for Azure SQL Database and SQL Managed Instance
https://learn.microsoft.com/en-us/azure/azure-sql/database/quota-increase-request?view=azuresql
NOTE: If you are still in the initial 30 days of an Azure Free account and have not upgraded to Pay-As-You-Go you cannot submit a Quota request, so your only option is to try different region.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP