Google seems to be testing an ‘Interesting Find’ section in Knowledge Panel in Mobile SERP. Glen Gabe posted a screenshot of the same on Twitter.
Google was testing an ‘Interesting Find’ section for AMP pages last year in April. The results would show up towards the bottom of the SERP with the top carousel markup. Now it seems that Google is testing it as a part of the Knowledge Panel. We are not able to replicate this test but surely it is an interesting place to put them.