I feel like a big reason for the divide is the filter bubbles[1] the public has trapped themselves in. I wanted to force myself to read news from both sides of the divide rather than simply NPR, which was my go-to source for several years. In spite of RSS readers being essentially dead, there are still RSS feeds available. So I mashed up feeds from 10 left and right leaning sources each and created Smash the Bubble[2], mostly for personal consumption.
[1]https://en.wikipedia.org/wiki/Filter_bubble
[2]https://smashthebubble.com/