See this post for Scot McKnight's recommendations concerning commentaries on 1-2 Peter and Jude. McKnight lists:
John H. Elliott: 1 Peter (Anchor Yale Bible Commentaries) .
Paul J. Achtemeier: 1 Peter: A Commentary on First Peter (Hermeneia).
J. Ramsey Michaels: 1 Peter (Word).
Joel B. Green: 1 Peter (Two Horizons New Testament Commentary) .
R Bauckham: 2 Peter, Jude (Word).
J. N. D. Kelly: Epistles of Peter and Jude (NT in Context Commentaries).
Jerome Neyrey: 2 Peter, Jude (Anchor Yale Bible Commentaries).Gene Green: Jude and 2 Peter (Baker Exegetical Commentary on the New Testament).