Scenario:
Site Collection A - Everyone landing/home page
Site Collection B - Finance
Site Collection C - HR
Site Collection D - IT
Each of the site collection has unique permission and groups.
Finance Owner, Finance Member, Finance Visitor
HR Owner, HR Member, HR Visitor
IT Owner, IT Member, IT Visitor
Question
How to setup navigation links in landing/homepage for Site Collection B/C/D with their respective SharePoint groups as target audience.