Use the Instagram analytics/insights to check your most popular posts and look for patterns that happen the most (a special kind of food, cooking, a style of content like recipes or tips, etc.). It's about finding what they like the most, then you could make a digital product of interest (a video course, a book, or anything that fits your findings), and promote a piece of that content for free in exchange for email, constantly, then send an email series to sell the whole thing. This way you can repeat and segment your followers into different lists for promoting targeted products. Best of success!