HR Policies depend upon your Organisation'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, templates are designed according to your organisational requirements, your business processes, your requirement of candidates or human resources for running your business. Nobody can provide you such a list without knowing these things about your organisation.
People like me, with over 47 years of industry experience, half of which in HR domain provide HR Consultancy on these matters. Recently, I was in a Gulf Country ie Doha, Qatar for 8 days, last month for auditing a large logistics organisation with 400 + employees. We found NO Organisation Structure, no Job Descriptions, No KRAs, No KPIs but they want to go ahead with Performance Management System. We have given them a road map for implementing all these things. Next month we are going there again for staying there for one month for installing all these things.
If interested, please let me know.
Best wishes