If we talk about that so we can say, it depends on your business. Every business has its own focus audience. We just need to aim and know where we have to target. But I give some basic suggestions-
* Find the best platforms for your market and business
* Find and connect with influencers for cross-platform marketing
* Grow your audience by publishing quality content consistently and at the right time.
* Engage with your audience. Connect with them to understand better.
* Set goals at the planning stage and measure results periodically and tweak wherever needed.
Hope it will work for you.