If you are going to Missouri blind you can review agent profiles on Trulia.com or Realtor.com. Likewise, on ColdwellBaner.com that are many profiles of agents. If you are planning to buy something, you may find a Coldwell Banker Company that participates in the U Promise program, http://www.Upromise.com.
Check it out. You join uPromise for free, there is never any charge to you and you can refer yourself to a Coldwell Banker company. The company will pay you a referral fee up to $3,000. The catch is with U Promise the money is for higher education that can be used for yourself, children, relatives or anyone you wish. It is a cool program.