@bx Zhang - Thanks for the question and using MS Q&A platform.
Unfortunately, Sandbox are not available for the Azure Analytics services.
Mostly, sandbox are available for the modules deals with (virtual machines, storage accounts and app services).
If you don't have an Azure subscription, create a free account where you get USD200 credit to spend during the first 30 days.
Hope this helps. Do let us know if you any further queries.
If this answers your query, do click
Accept Answer and
Yes for was this answer helpful. And, if you have any further query do let us know.