I wouldn’t say I’ve been in exactly the same situation, but I suspect I know something that could help you. About two years ago, I was helping my sister promote her Instagram blog, and she couldn’t figure out what her followers would be interested in. Then, one evening, we stumbled upon recently-followed. It helped more than we could have imagined. My sister was able to see her audience’s latest subscriptions and tailor her content to them. So, I think this app could help you too.