This question is asked often, and the answer is always that it depends on who your audience is. Channels that work for one person might fail for you, and vice v

This question is asked often, and the answer is always that it depends on who your audience is. Channels that work for one person might fail for you, and vice versa. Every product solves a different problem, which means different people who seek out information from different places. Step 1 is to understand who those people are for your product, and figure out which information sources they trust. As implied above, almost nobody trusts online ads.