Calculating Market Rent

[Allen Kim]

Looking for recommendations on websites/services for calculating market rent in a given area. I have used sites like zillow, realtor.com, and craigslist as a reference but prefer something that lists past rental listings as well.

I've considered rentometer but know its based on average/median rents so a lot of apartment complexes are included when I am more interested in SF homes and duplex rental rates.

Thanks!