‘m looking at your question from two different angles. One is about niche blog. While the other is about a topic for my blog. I wish to give you the two responses in case your question is actually the one I have in mind.
Choosing A Niche Blog:
So, let’s start with the niche blog. If you have a blog, it should be about something. But if you haven’t decided what your blog should about already, here are a few thoughts that might help.