The best micro niche for blogging is probably the pet niche. There are a lot of pet bloggers out there, and they are usually very passionate about their topics.
This makes it a great micro niche for starting a blog.
Another good option for a blog is the parenting niche. There are a lot of parents out there, and they tend to have interesting stories to tell about their families.
This makes it a great micro niche for monetization.
There are also a lot of other great micro niches out there that would work well for blogging. If you have an idea for a new micro niche that you would like to try, don’t hesitate to start your own blog.