Several years ago, I was introduced to three amazing preachers at the BASICS Conference: Derek Prime, Eric Alexander, and Dick Lucas. They are pillars of pulpit ministry from a previous generation but still have much to teach us today.
I recently discovered that Proclamation Trust have several of Lucas’ sermon series available for free download. I would start with 1 and 2 Timothy. From there, you can listen to him expound on Romans, Galatians, 1 Corinthians, Colossians, Hebrews, 2 Peter, and John 3-6 as he explains the interpretive key to the Gospel of John is the very one John gives us: Evidence, Faith, and Life (John 20:30-31).