Don't waste your time!
Go to those places that won't waste your time.
What you will discover is the outcome will be IDENTICAL.
If you are serious about finding a place to rent, call a REALTOR in Perris. That REALTOR will refer you to another agent who does work in the rental market. Start with the closed REMAX office.
The agent who is working in the rental market will know which listings are real and available.
Now that seems like the best approach to protecting your precious time.