HR policies depend on your organization's mission, vision, and values. There is no standard list at all. Perhaps you have not been taught these things during your MBA. Even letter formats and templates are designed according to your organizational requirements, your business processes, your candidate or human resources needs for running your business. Nobody can provide you with such a list without knowing these specifics about your organization.
Individuals like me, with over 47 years of industry experience, half of which is in the HR domain, provide HR consultancy on these matters. Recently, I was in a Gulf Country, specifically Doha, Qatar, for 8 days last month auditing a large logistics organization with 400+ employees. We found no organizational structure, no job descriptions, no KRAs, and no KPIs, yet they want to proceed with a performance management system. We have provided them with a roadmap for implementing all these necessary elements. Next month, we are returning there to stay for one month to install all these components.
If interested, please let me know.
Best wishes