It would be incredible if there was a post idea generator. IE: On the calendar, we could view special hashtag days, holidays, etc. When creating a new post, suggestions could be shown with trending hashtags in our industry. For example, I am in the beauty industry; on Wednesdays, a big hashtag is #watershotwednesdays.
Content pillars are something that is widely used, even pulling data from there to give some ideas would be helpful.
I think it would be so beneficial to help creators to mix it up!