Main considerations: Looking for airfoils with a high thickness and high lift performance at low reynolds numbers
http://airfoiltools.com/airfoil/details?airfoil=e1098-il


http://airfoiltools.com/airfoil/details?airfoil=e1200-il
Somewhat flat bottom
Max thickness of 16.9%
May have difficulty manufacturing and designing trailing edge


http://airfoiltools.com/airfoil/details?airfoil=e1230-il
