Does teradata provides free or trial setup of multinode (at least 2 node) environment
Teradata Express is a single node 2 AMP only VM, but there's the free Teradata on VMware Developer Tier running on VMware ESXi which supports up to 2 nodes.

Or you could check Teradata on AWS &amp; Azure, there's some free version, too, I don't know if they support multiple nodes.

But the main question is:

Why do you think you need that for testing? There's absolutely no difference if you got a single node or a multi node system.