Instagram Shares Guide for Engaging Different Communities
Instagram shared a slightly different version of its guide for using content formats based on what communities creators are trying to reach.
This version is vertical, mimicking more of a funnel with Reels and Carousels for reaching new audiences (awareness), Carousels, Single Photos, and Stories for engaging followers (engagement), and Lives and Channels for nurturing loyal fans (retention).
Notes are missing from this framework, but they likely would fit best for engaging followers.