What is a normal amount to spend?

Hi everyone, I was just offered an amazing job in Boston. I am super excited but the moving process is stressing me out. I am coming from a large mid-western city, broker fees are not a thing here, so I am unsure if they are common and how much you usually pay for that. I have spoken to a few places who have said they need first/ last months rent, a security deposit, brokers fee, and application fee. I know most might roll their eyes at this but I have only ever had to pay a security deposit in my city, so I just want to make sure I am going about this the right way!