USA Today has had something like this for a long while [1], though whether they find the strongest voices on each side is debatable.
[1] https://www.usatoday.com/story/opinion/2018/01/26/why-does-u...
[1] https://www.usatoday.com/story/opinion/2018/01/26/why-does-u...
Another one is ground.news [1] which lets you compare multiple headline news articles from various sources together.