By promising to make money instead of building, you won't have to worry about Google's constant algorithm updates affecting rankings. Because, after all, trying to betray Google's engineers is a game you lose. For example, suppose you want to create content about the definition of conversion copywriting. The first thing you do is perform a Google search for "What is conversion copywriting?"
When you look at the results, you will see that it is a good opportunity to create more valuable content (highly linked content) about that topic. Also, since most Phone Number Database results don't answer the question directly, you may be able to create content that appears in Google's answer box for this phrase.
Also, you're trying to cover the topic as thoroughly as possible, so be aware that you may need to create long-form content. Not only does it help ensure that your posts are very informative, but it also puts you in a better position to rank you at the top of search engine results.