Let’s get one thing straight: there are no “boring” niches.
Some people are passionate about something that others will find annoying and vice versa. It does not necessarily make a niche boring by default.
However, some niches are much more appealing than others to the public. For example, topics related to popular culture (movies, celebrities, lifestyle) will draw more attention compared to, let’s say, air conditioners or, god forbid, scissors.
Since the former is a very dynamic industry with lots of updates taking place within the day, not to mention popular culture being ingrained in our subconsciousness, there is a lot of information to cover regarding this niche. The latter, on the other hand, is pretty cut and dry – there is only so much you can discuss airconditioners, scissors, builder, and similar product niches.
While there is nothing much you can do to change the fact about your niche, what you need to worry about are the things you can control, one of them being your blog content.
If you feel that you are blogging for a “boring” niche, then you need to learn how to make your content interested enough not only for your target audience but also to the public.