Small topic blogs are the best, well that’s what I think. Small topics have little competition for you to rank for but that also can be bad if not enough people are looking for that tiny niche. Here’s the thing about any niche you get into. You don’t want to box yourself in a small corner with any niche. Meaning make your niche bigger than it is. If your niche is about balloons, I would change that to talk about things that can inflate like tires, balloons, things that can inflate. This way you can have more things to write about in your blog. You are not boxed one topic but now you can talk about other things.
The next thing that you can do is write your first blog post. Some people set up the blog, then don’t even write the first post. Writing a blog post is the best thing you can do for your site before anything else. Before you pick a tiny niche, you must first see of you can build up this niche? can you make money for this niche? Is there people looking for this niche? Are there products you can promote? You can use google tends, use social media to see what are people looking up. I use google and type in something to see what comes up in the results.
The key is to produce content on a weekly basis is the key.