Preheat oven to 375 degrees. Wash and pat dry the chicken thighs. Transfer to a baking sheet and drizzle with olive oil, salt and pepper. Cook for about 22 minutes, flipping chicken halfway through.
Once the chicken is cool enough to touch, use to forks to shred. Alternatively you could shred with a stand mixer. Combine Greek yogurt, tarragon, lemon, olive oil, salt and pepper into a bowl.
Mix well until creamy and combined.
Chop almonds, slice red onion and cabbage. Add all ingredients in the bowl with the dressing. Mix until combined.
Serve on its own, or add to sourdough bread.