Stream Tools
PC Streaming Tools
Streamlabs OBS
Streamlabs is an easy to use, free streaming application to help organise and run you stream, including camera and game/display capture as well as customisable scenes and alerts. For an extra subscription fee you can get access to extra features such as more themes to download and use.
OBS Studio
An open source streaming studio project featuring fast operation and multiple windows for controlling elements of your stream.