There’s no single strategy that will work for everyone – a lot will depend on what you’re selling and who your target audience is. Some ideas may include:
Posting content from your customers, such as product reviews or customer stories.
Educating them about your products with videos and how to’s.
Showing them the backstory of running your business, e.g., with Instagram stories.
Tracking what engages your audience (e.g., using NapoleonCat analytics) and then posting more of what brings the best results. Read this post for some more ideas.