@Madi11 When you're using the Search form, you can click on the Amenities tab, and choose "Suitable for parties/events" as a search filter, and see if you like the choices.
It's true, you won't find many hosts that will allow this on Airbnb, and for many reasons Airbnb is an incredibly unsuitable platform for event rentals.
But this is a very solvable problem! Just use a different website. For example, Peerspace is modelled after Airbnb but specializes in private homes for event rentals. EventUp and Eventhomes also have a lot of listings around the LA metro.