Well done on having a popular blog.

Have you asked your blog readers about their backgrounds? For instance, if you do some research on thenm and find out that the majority are teachers then that would give you clarity on how to niche down.

Talking to them is really important and builds rapport.

You could simply create a blog post with a survey that asks questions about them and what they’d like to see more of.

I think doing this is the first step and then you’ll have a better idea of which area to niche into.