As a blogger, you have various possibilities to earn money, whereby it always depends on how big your blog is or how small the niche and which variant you personally prefer.
In addition to Google AdSense, Amazon, and other affiliate programs, which usually serve as the first port of call for monetizing a blog, there are other, more lucrative sources of income for bloggers.
Direct marketing means that we rent advertising space in our blog directly to the advertiser and not through an intermediary. One advantage is that revenues are usually significantly higher than those generated by corresponding AdSense ads, whereas the difficulty is the acquisition of suitable advertising partners.
Many bloggers also find it difficult to assess the value of their own blog, although there is a very simple approach to this: Use the Google Keyword Planner to find out how much advertisers are willing to spend on your main keywords.