The Streamlab app has easy-to-use tools to set up your stream, with a lot of customizable widgets and layouts. A month ago, Streamlabs OBS had a private beta for Mac so people could test it out. However, their service was only available for Windows, until today. Famous streamers such as Pokimane, TrueTriz, and STPeach have also been using the streaming app.
One of the more popular ones is Streamlab which has around 21 million users. Live streamers make use of different services to optimize their videos in different streaming channels.