Lots of people are going to start giving you AI platforms both sponsored and not sponsored, and argue that is good enough etc. I, on the other hand, would recommend you learn about the niche, study, do some research and get some practice if possible, at least a couple of weeks to really get an understanding of what that is and how it feels to do that or own that product.
Then, you can start writing your articles tailoring them to your target audience. WHY do I recommend you write? Because, I think there is no equal to human ingenuity, and creativeness and you will end up producing better content than any one of those other tools. That though, will be difficult and take a long time. But you really want to make it in the online IM world, then you should know there is no other way!