Advice on rental rates

[Brian Ciaccia]

Hello all! I am new to the group and real estate business.I have an opportunity to purchase a home from a friend of a friend, and am trying to analyze if it's a good deal. My biggest hang up right now is figuring out what this property would rent for. Aside from the obvious of looking at Facebook marketplace for rental rates, does anyone have suggestions on the best way to determine what I should expect this home to rent for? Is Zillow's rental estimate feature reliable for determine this? 

Thank you in advance for any advice provided to me! I look forward to getting started.