One book in particular has really had an impact on me as a dad was Robert Lewis' "Raising A Modern-Day Knight." While there are some points that I might argue with or disagree with to a certain degree, most of the book provides great advice and a framework on the importance of father-son relationship, the effects that has on your son later on in life, but more importantly how God has called us to a higher calling in being a dad and with that comes a great responsibility.
The author goes through your relationship, celebrations, and ultimately aligning God's will for your son, with you as an important facilitator of that. I highly recommend it to any dad with a son, and hope that you are blessed as I was after reading it.
After being baptized, Jesus came up immediately from the water...and behold, a voice of the heavens said, "This is My beloved Son, in whom I am pleased." -Matthew 3:16-17