I typically tell people to try Craigslist for rentals or to look in the neighborhoods in which they’d like to rent. Occasionally, landlords will place signs at the property only and not list it anywhere. But more often than not, the rentals appear on Craigslist.
Rentals are very scarce these days but if you are persistent you will find something.
Also, when you are looking in an area in which you want to rent, look for properties that are currently for sale. The market is deep with investors. Once they buy the property, soon after they are trying to rent it out.
Happy rental-home hunting!