I've encountered myself quite a few times trying to express the word among in chinese and the meaning that it carries, just like in these two senteces:
He's vey popular among the students.
Quite a few students have passed the exam, and I am among them.
How do I express this idea? For example, for the first one I would say: 他在学生们中很吃香的. Is it correct? Is it the best way to express what I am willing to express?