One of my favourite songwriters is Gary Duty. He is from the Detroit area. Kind of a bluegrass style of music, but very Christ honouring, and very "Sound Doctrine." That's the name of his group. I think their link is
www.sounddoctrinemusic.com. Another good songwriter is Squire Parsons Jr. My daughters have written a couple pretty good songs as well, but they are yet unpublished. There's tons of good music out there, depending on your tastes.