This is not New York City so most agents will not ask for a brokers fee. The landlord or property manager will pay the fee. Now for the bad news. As a recently retired real estate agent, most agents refuse to work with renters because the commission earned is too little. Agents make much more money assisting buyers and sellers with either selling their home or buying a home.
You will need to contact some of the large brokerages, ask for the Office Manager or Broker in Charge. Then ask them to connect you with a brand new licensed agent. New licensed agents need experience and clients. Once they get both, they drop renters and move on to buyers and sellers.