One common use case for Instagram Stories is to show behind-the-scenes content. For example:
Restaurants show how their dishes are preparedMusicians show how their music is recorded in their studioSports teams share training sessions with fansFashion experts demonstrate how to put together the perfect outfitSaaS platforms could provide an inside look at their company hack-day
Source: blog.bufferapp.com
Everyone loves a good #InstagramStory.