Preheat oven to 425°F (218°C). Spray a 12-count muffin pan with nonstick spray or use cupcake liners. In a medium bowl, whisk the yogurt, eggs, almond butter, honey, and vanilla together until smooth. Set aside. In a large bowl, whisk the oats, almond flour, baking powder, baking soda, salt, and cinnamon together until combined. Pour the wet ingredients into the dry ingredients and whisk until everything is combined. Fold in 3/4 cup blueberries, reserving the rest for the tops of the muffins. Spoon the batter into liners, filling them all the way to the top. Top each with a couple blueberries and almonds, if using. Bake the muffins for 5 minutes at 425°F then, keeping the muffins in the oven, reduce the oven temperature to 350°F (177°C). Bake for an additional 14-16 minutes or until a toothpick inserted in the center comes out clean. The total time these muffins take in the oven is about 19-21 minutes, give or take. Allow the muffins to cool for 10 minutes in the muffin pan, then transfer to a wire rack to cool until ready to eat. Make ahead tip: Muffins stay soft, fresh, and moist in the refrigerator for up to 5 days. Muffins freeze well for up to 3 months. Thaw overnight in the refrigerator before enjoying.