Your best money OTR will be with tanker/hazmat.
Here's a company that averages $65K per year : artransport (have a terminal north of Birmingham in Decatur: tanker/drybulk)
So tanker or tanker/hazmat for the best money & benefits.
Refrigerated for second best money & benefits.
Here's some more with good benefits :
Quality Distribution (tanker)
drive4marten.com (refrigerated)
bulkmatic.com (tanker drybulk)
navajo.com (refrigerated)
Superior Carriers (tanker)
I made $65K per yr. with tanker/hazmat, liquid & drybulk running OTR coast-to-coast/border-to-border & Canada, but the company I drove for doesn't have anything near you. I just retired.