Ralston College FUNDED MA program: https://www.ralston.ac/humanities-ma
Plutarch offers some advice on how to choose your friends, and how to be a good one. Examples include Alexander the Great, Cato, Carneades, Plato, Dionysius the Tyrant, and more.
(Here depicted: the monument of Philopappus in Athens, to whom Plutarch’s essay is dedicated)