Shawarma Spiced Chicken Thighs with Roasted Radishes

Name: Shawarma-Spiced Chicken Thighs with Roasted Radishes
Ingredients: 8 large bone-in, skin-on chicken thighs; Kosher salt; 2 Tbsp. cumin seeds; 2 tsp. coriander seeds; 2 garlic cloves, grated on a Microplane; ¾ tsp. paprika; ¼ tsp. freshly ground black pepper; ¼ tsp. ground cardamom; Pinch of ground cinnamon; Extra-virgin olive oil; 1 bunch radishes, halved lengthwise and greens reserved; Plain full-fat yogurt, Greek yogurt, or labneh, for serving; Hot sauce, for serving (optional); Side salad or cooked rice, for serving (optional)