Hello all! Cho's family is one of the great merchant houses. They tend to be at least outwardly neutral in the Dark vs Light debate and think of themselves as firmly Gray. Therefore, Cho's likely acquainted if only by name and reputation with most of the pure blood families.
On a personal level, Cho would love to run into her former housemates, any DA members or folks from the Hogwarts Quidditch teams. Also, as she is in the family business, if you need something shipped or imported, she's your girl!