"Nice call" is a phrase commonly used to express appreciation towards someone for making a good decision or taking the correct action. There are various synonyms that can be used in place of "nice call", some of which include "well done", "excellent choice", "spot-on decision", "brilliant move", "great judgment", "astute decision", and "thinking smartly". These synonyms can be used in different contexts based on the situation and the level of formality. Using synonyms can help avoid repetition and add variety to conversations, while still conveying the same positive meaning.