Feature accounts are simply Instagram accounts that curate and reshare other users’ content based on a hashtag or tagging. Some of these accounts have a huge following, and having them share one of your posts (along with your handle) can send a new stream of followers your way.
There’s a feature account for just about every niche and interest on Instagram. You’ll start to uncover them as you do your hashtag research, as recommended in the previous tip. Some of them can get pretty specific.