Check with a Realtor. Lots of owners list their properties with Realtors.
Also, check Craigslist. Be very, very careful, though. There are a lot of rental scams. Craigslist even warns you about it. Read the warnings and the things not to do.
Finally, you could contact owners whose homes are vacant and who are trying to sell. Some of them would rather have a tenant in there taking care of the property and paying rent than having their house sit empty.
Hope that helps.... more