There are lots of strategies how to make money and it will vary based on your specialty. It could be premium content, premium services, exclusive engagement with your fans, merchandising (e.g., many cooking YouTubers sell their own brand of cooking utensils that they have designed themselves). It requires some thought, but the idea is to deepen the authenticity and engagement by building an actual community and your own personal micro-brand. The offering needs to feel organic and huge value to your community in some way. Many many people have done this on YT and now are making way more money than what's possible with the pittance that is YT monetization. YT then becomes just one part of your funnel intake strategy once you get big enough.