Welcome to Microsoft Q&A Platform, thanks for posting your query here.
Please check this link on how you can get started with creating a Azure Free Trail account.
You can refer to below quick start guides on how to deploy Azure VM's in your Subscription.
https://learn.microsoft.com/en-us/azure/virtual-machines/windows/quick-create-portal
https://learn.microsoft.com/en-us/azure/virtual-machines/linux/quick-create-portal
Select the VM size that is eligible for the Free Trail subscription.
Also, request you to refer these links for more details on Free Trail Accounts:
https://azure.microsoft.com/en-in/offers/ms-azr-0044p/
https://azure.microsoft.com/en-in/free/free-account-faq/
If you face any issue when you try to deploy VM's in Free trail subscription, then request you to try deploying in another region.
There could be some capacity issues few regions might be facing as mentioned here.
Hope this helps.
If you need further help on this, tag me in a comment.
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