Social Media Marketing is the best way hands down...as long as you have a ton of people in your networks. You can get your message out to the masses, grabbing likes, shares and responses. It’s worked very well for me. SEO is a close second because so many people use Google searches or Siri etc 

By the way, some of you asked about YouTube marketers...I am an expert at that and all other SMM and SEO. Here’s my email address [email address]