I would like to know how many robots can I run in parallel from my UiPath Orchestrator and where can i find those sort of information? where I can see the license types and it's description, however I am not sure how can I check on my Orchestrator.
Licenses in Orchestrator are assigned on a Tenant level, and one instance of Orchestrator can be used to manage multiple Tenants. If you just want to see how many licenses are assigned, click on the respective link
here is a link if you want to read in-depth about licensing