There are several ways to promote an affiliate product.
You can use both organic and paid methods.
Organic methods take longer to achieve results but are more durable.
This can be done with a blog or by creating a YouTube channel.
You can write reviews, tutorials and case studies.
For example you can share your experiences doing the One Funnel Away Challenge.
People are more likely to resonate with you that way.
Your content can rank on search engines like Google.
Also share your content on Pinterest which is a massive search engine.
You can also drive free organic traffic from social media like Facebook, Instagram and Twitter.
Quora is another platform you can build credibility and get free traffic by putting out content in reply to people looking for answers to various problems.
Paid traffic is usually through paying for ads on Google, Facebook, Microsoft Bing and Instagram.
Solo ads, where you pay someone with a big email list for guaranteed number of clicks to an affiliate landing page is also very popular.
Udimi is one the best solo ad platforms.
You can read all about traffic here.
Learn more about traffic from Russell Brunson himself in his new book, Traffic Secrets.