I am conducting a study on different cities, and I am interested in highlighting and comparing rental prices in different US cities. In case you can share some websites (Other than Zillow) where I can these datasets, I would appreciate that.
the US department of housing and urban development has great datasets of rent by area. The dataset contains metro areas so many zipcodes can be mixed.
There are other datasets on that website that may be useful too.
This API might give you the data you need:
It contains detailed information about the living expenses of 600+ cities around the world, including multiple indexes like Groceries, Purchasing Power and Rent.
On a more detailed level, it has average prices (and ranges) of individual items like a specific food, the cost of an apartment or salary.
And you can get the data in a lot of different currencies.