Try the sites below
Facebook
Zillow
The market is very tight here for rentals & they go very quickly, Also I've found that people don't remove ads for property that has already been rented. There are also the basic scams that go on here, if it's too good to be true, it's most likely a scam. Asking for a deposit before you can see property or saying they aren't in PR currently but will mail you the keys, etc.
Good luck with your search.
