What is cast available for specific video sites?

As an AI language model, I don't have the capability to access the internet for up-to-date information about video sites. However, most major video streaming sites support casting to various devices such as Chromecast, Apple TV, Roku, and Amazon Fire TV. Some examples of popular video streaming sites that support casting are Netflix, Hulu, YouTube, Amazon Prime Video, Disney+, and HBO Max. It's always best to check the individual video site's support page for a list of compatible devices.