Help getting Pre-Sale Materials for Dynamics 365 Human Resources?

Hello Partners,

We are a new entity in the microsoft world, and I would like to ask you experts for some operational advice on the pre-sale part of the Dynamics family .

We have received a request from a potential customer about Dynamics 365 Human Resources, already the first ice-breaking call has been made but now I would need to go in depth.

We have already seen and used the material on the Transform https://dynamicspartners.transform.microsoft.com/gtm/modernize-erp/human-resources page but unlike other products we do not know how best to proceed for the second in-depth meeting.

Is there an interactive demo of HR?
Are there no trial licenses available for this product?

I hope for your response that can help us in this particular case.

Thank you in advance