How should I shop for a mortgage?

[Scott Fournier]

I am new to the game of real estate investing and I wanted to know how should I approach shopping for a loan? I'm mostly indecisive on whether I should shop around for a loan myself by calling multiple banks or if I should have a mortgage broker shop for me to find the best rates and terms? Someone told me I should use a broker because they can do it for me but I'm not afraid to put the work in and call as many banks as I need to. Thank you.