攀龙附凤（攀龍附鳳）　

◎ 攀龙附凤 pānlóng-fùfèng

[play up to people of power and influence;put oneself under the patronage of a bigwig] 龙,凤:比喻有权有势的人。喻指为获名利而去巴结投靠有权有势的人

攀龙附凤,驰骛之秋。——《三国志·鲁肃传》