Preheat the oven to 400F. Whisk together the melted coconut oil, coconut sugar, maple syrup, yogurt, eggs, and vanilla until smooth.
Add in the flour, baking powder, baking soda, salt, and lemon zest. Stir until a soft dough is formed.
Microwave the frozen berries for 1 minute in a microwave safe bowl. Transfer the berries to a strainer and run warm water over them for 20 seconds. You'll be left with approximately 1 cup of berries.
Gently fold the rinsed berries into the muffin batter. Some will get smashed, but aim to keep about half of them whole.
Grease a muffin tin with baking spray and divide the batter between 10 muffin tins. Top with turbinado sugar.
Bake for 14-16 minutes. Cool the muffins slightly before removing them from the pan with a knife or offset spatula.