Yeah, there are two builds for Mistweaver because it has two very different ways to play. The Way of the Serpent is more about ranged healing and HoTs, while The Way of the Crane is mainly about healing through damage. Both are competitive in all content. Just pick the gameplay you enjoy the most.
And for Windwalker, I’ve just published the first sequence now Wenlo - The Way of the Tiger : A Raid and Mythic+ Build for Midnight Windwalker Monk (Pre-Patch)