Rite Publishing's Kaidan: a Japanese Ghost Story which currently has a
Kaidan Campaign Kickstarter in progress (Sept 16 ends), has a Hengeyokai race with it's own supplement
In the Company of Henge.
The race of Henge, are shapechangers of Japanese folklore, essentially humanoids whose natural form is a human body/animal head, that can shapechange into a full human (only 1 person's form, your human self), as a full animal form, and their normal hybrid form. Henge come as inu (dog), mujina (badger), neko (cat), nezumi (rat), saru (monkey), tankuki (raccoon dog), and usagi (hare) forms.
There is a 20 level racial paragon class called the Mushakemono. This class has a roguish quality to it that somewhat mixes with ranger qualities with Henge Tricks (wilderness and stealth abilities) and Advanced Tricks, limited Sneak Attack progression, Woodland Stride, Favored Terrain, Evasion, Hide in Plain Sight, while it's Shapechanging ability occurs at 1st, 10th, 15th and 20th levels.
With the race's own natural shapechanging ability (described in paragraph 1 of this post) there are also several class archetypes built exclusively for it: Ranger (henge matagi) - with forest as only Favored Terrain, though it has special connections with the Kami spirits of the forest and learn what is going on throughout the entire forest area; henge druid and henge barbarian.
Japanese weird monster races might not be what you're going for, but especially the Mushakemono class is a shapechanger who doesn't have to be a druid.