It's new so there's not many people in it, but I've noticed that the engagement in this group can be low so maybe a Facebook group will be more helpful/accessible for learning more about how to utilize Instagram.
The plan is to have expert spotlights around once a month, and everyone is welcome to share their tips & expertise. It's also promo-friendly, so as long as you give value you're able to promote your products.
Here's the link to join if you're interested: https://www.facebook.com/groups/the.growth.circle.by.hashtag.slayer