If you are looking for recommended commentaries on the books of the Bible, we have a page of Recommendations for Bible Commentaries.
However, if you desire to take it to the next level, and look into the important commentaries on a book of the Bible from all of Church history, we have created just a webpage for you:
At one time such lists of commentaries would have been of little value to most people, as those commentaries would be very hard to come by. However, since most of them are now online, the Lord has made thine cup to run over (Ps. 23:5).
Search the Scriptures to your heart’s content (Jn. 17:17; Acts 17:11) and bless the Lord!