The phrase "flock together" is often used to describe a group of people or animals who share common interests or characteristics. There are several synonyms that can be used in place of "flock together" to convey the same idea, including "gather," "congregate," "assemble," "unite," and "cluster." Each of these words suggests a coming together of similar individuals, whether it's for social, political, or cultural reasons. Other synonyms for "flock together" include "band together," "form a clique," and "stick together," all of which describe a sense of solidarity and shared purpose among members of a group.