Maybe missing something obvious here: Is there a way to build a channel (or otherwise view) communications / posts by "mutuals" (as in people I follow that follow me too)? I thought I've seen that

Maybe missing something obvious here: Is there a way to build a channel (or otherwise view) communications / posts by "mutuals" (as in people I follow that follow me too)? I thought I've seen that around here already but I fail to find it again. At least in the channels creation screen, I don't see that option...