I've never lived in a large metro, so I'm unsure how prevalent brokers are (or even how they operate). Do you have to deal with rental brokers in all large citi

I've never lived in a large metro, so I'm unsure how prevalent brokers are (or even how they operate). Do you have to deal with rental brokers in all large cities? Even the Midwest/south like Dallas, Indy, Atlanta, KC, Phoenix, etc?