My favorite mascara (after trying TONS) is Buxom's Amplified Mascara. It holds a curl, volumizes, defines and lengthens. It also lasts all day and is made out of natural ingredients, it's great!
The YVES Saint Laurent mascara collection are just amazing. It is pricey but they all work to volumize your eyelashes without even clumping. I love the baby doll one for $30. They last long as well and don't smudge. For drug store prices the Maybelline rocket lash is great as well. The waterproof one takes forever to take off though. I have used the Babydoll and the rocket at once and it make my eyelashes pop with volume and lasts longer. Plus they curled.