Find Related Topics To Boost Authority
Now that you know your niche for certain, you can start finding related topics that will feed into your efforts going forward. Think of it like a brainstorming exercise. Your niche is in the middle and all the tendrils moving outward are other topics that are similar, but not quite the same. Speaking of content, you are going to need a lot of it.
While social media is a part of promotion and visibility, content is where your grasp of your niche market is really going to tighten. You should be focusing the majority of your efforts there, and working towards building your authority through high-quality pieces meant to both inform and entertain.
Sure, you can write those (and should!), but it is only one part of the game. In addition to blogging, you could create infographics, tutorial posts, podcasts, videos, comics, slideshows … the possibilities are endless.
Your best bet is to feature many kinds of content focused on areas around your niche, to reach different members of your audience who respond to different forms of media. Someone who likes to read blog posts might not be so into videos, and vice versa. The good news is you can recycle one piece of content into another type. So if you have a blog post, for example, you can use it to make a slideshow or a podcast.