The route you take may depend on the rent price point. If your price point is over $1200/month, then I can help you find those through the tools available to me as a Realtor. Lower priced options would likely not be placed on the Multiple Listing Service that I would use. If you're looking for an apartment below $1200/month, then my suggestion would be to try Craigslist or a subscriber service such as Westside Rentals http://(www.westsiderentals.com). They charge a subscription fee, but a large number of rental units in LA are list there. I hope that helps! Please let me know if you need any additional help!