Content is everywhere if you look for it.
It doesn't matter what you blog about. Your dog, your cats, perhaps your love of miniature golf? As long as you are passionate and authentic. Don't steal other people's work and or post without some kind of attribution.
Be the best you that you can be. People will find you and start engaging with you.
The person I mention in the video is from Linked in. The post can be found
here Go see it for yourself.