Zscaler features and associated licenses

I am exploring Zscaler features which I’ll list below, I am looking to understand for which of these I’d need a license and which of these I can quickly get started with without needing additional license. I have ZPA portal access so far. The features are:

Cloud connector

Zscaler B2b

ZPA Inspection.

ZPA API

Privileged Remote Access

Private Service Edge

Remote Browser Isolation

Deception