estimating rents in st petersburg/clearwater

[Sama Pa]

looking to invest in mfh in pinellas county, fl (st pete, largo, clearwater) and average rents are all over the place. looking mainly in up and coming neighberhoods and looking for advise on how to get to know the market better? Specifically, which areas would make for good brrr properties and how can i know how high to push rents? thank you!