Numbers of user models I should use using passport local?

I am working on my first real life application. It has several types of users: 1. Normal, 2. Admin and a Single Super.

I am in dilemma choosing between:

1. Creating a mongoose string enum field to hold each of these levels (1 model for all users)

2. Creating two different models, one for users one for admin + Supers (2 different models)

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