Here are some of my thoughts on the resources available for Proverbs:
1. The best commentary on Proverbs is the Mentor Commentary by John Kitchen.
2. The inspiration for this series came from the excellent little book, A Proverbs Driven Life by Selvaggio.
4. Kidner's Tyndale commentary is the best short commentary on Proverbs. This is the best commentary in this series that I've used. But, I found myself wanting Kidner to say more.
5. That's it. Not many other good commentaries on Proverbs.