We have all seen people use large green screens on Twitch and other platforms. The Background Buddy is also worth a look. It is a portable green screen backdrop for office chairs. It has adjustable neoprene straps to fit most gaming chairs.
This green screen collapses to a compact size when you are done with it. Background Buddy comes with a metal reinforced velcro strap, so you can attach it to a stand or hang it on the wall. It has a diameter of 57″, making it ideal for any livestreaming platform.