Play the Catalan Against the King's Indian Defense
The King's Indian Defense is one of the most popular openings for Black against 1.d4. If you want to play something less common (so Black is often not an expert in it) and more strategic, systems involving g3 offer a great solution. The ideas are simpler, with fewer complicated and forced variations, but Black still needs to play accurately.
For even better results, I recommend downloading the complete ROCK SOLID OPENING REPERTOIRE: https://rocksolid.matbobula.com/
And checking out the YouTube series: https://www.youtube.com/playlist?list=PLRvADDu6xjmkYXr5hyut1ETXHeS68lFno
Below are some basic lines that you need to know:
And here is a video where I explain all the ideas: