Which category do you think is the most ideal for a premium model on blog sites? There are no ads on my site, and I am moving forward solely with a premium model based on monthly subscriptions... For example, it might be hard to sell a personal development articles because there are millions of free ones online. Yes, if I had an ad-focused site, personal development could be a good niche, but I want to do something different. Rather than relying on ads, I want to earn directly from the end user. In your opinion, what are the most effective niches for my goal? Finance? Health? Psychology? Sports? AI? Software? Astrology? or any other good ideas?