MLP
Traffic Watch:
I flew with Chuck Street who's based at Fullerton - Disneyland/Notts Berry Farm area:
www.commanderchuck.com
The morning flight was 6-9 am and the afternoon 3-5 pm, but you can check times when you check availability.
I think the other operator is Group 3 Aviation, based at Van Nuys in the San Fernando valley.
LAX helipad:
Any school at Long Beach. I'm sure the people at Robinson will be able to recommend a place.
You could always combine it with a short low level flight down the California coastline - a wonderful experience.
Or even a long one if you have the time.
To give you some idea, it's less than 100 nm to San Diego. SD bay area is one of the most beautiful in the world.
If you have an afternoon to spare, highly recommended. It really is breathtakingly beautiful.
FL