In my opinion the best advertisements are through believable sources. Random posts on crypto forums, people talking about the coin. The coins you see advertised non-stop everywhere you go are scary to me, and I assume many others. However, when I see a couple people talking about a coin I definitely go looking into it.

When you read a blog post where a guy is advertising a crypto you know he's profiting from the post. Accounts that only mention the coin are paid shills. Advertisements on youtube, google, etc, have paid to be put there. All of these forms are not organic, and are driven by greed and money.

A couple people talking about a coin says to me that they're interested in it, and that's enough for me to look into the coin. From there I have to decide whether or not it's worth it.