For pageant shoes it is recommended that you choose a comfortable heel height.  In addition, try to limit the amount of time that you actually wear high heels since it is not particularly good for us.  Also remember to practice with your heals on the surface(s) that you may face in the pageant.  That said, here are some resources for many different options for both high heels and some alternatives to practice in when heels are not needed:

• Shoes
• Shoe Inserts