what kind of blog should i start??

I assume you want your blog to be successful. Given the fact that you are going to own the blog , it becomes necessary that you make the blog sustainable. It is universally agreed that good content brings good no:of visitors to the blog. For this to happen you need to post regularly & consistently. Here is a Tip: Do not worry what people want to read, just write about your passion or your hobby. For eg: if your hobby is car or soccer, then blog about it raher than writing articles on on-line earning or about parenting, just because these are the most popular categories of blog.