Do you search for an easy way to create a Twitch Stream Marker? Without spending the money for a StreamDeck and without interrupting the viewer experience because you need to tab out of your game to create a Stream Marker? I had the same problem and found an super easy & free way to do that: TouchPortal.
You can use this program to easily create a Stream Marker with your Smartphone or Tablet with only one click, it levels up your stream quality and makes it way more professional and you can even add other Buttons to control other Twitch or OBS Features via TouchPortal.
TouchPortal Download: https://www.touch-portal.com/#downloadstitle