Many people use realtors to rent out their homes and the rentals can be found in the MLS. I would call a realtor in the area you are looking to rent and he/she can try to get you a better rental price and show you multiple homes. If you need someone to help you in the western suburbs I would be happy to help.
Baird and Warner
For individuals that are familiar with the area this is one of the most common ways of finding rentals. Also, consider posting you needs on grocery store, church, community etc. bulletin boards.
Good luck with your search.