@JoeQuinlan They're both excellent- just finished the Croning actually- but I would add Reggie Oliver.
Langan's work was surprisingly hard to get hold of on Kindle but WordHorde has just released his older collections.
Re Langan and Barron, I'd actually compare them to King and Straub respectively. Langan, more pacy and more character driven, Barron more consciously mannered.