Here are several ways to promote Amazon affiliate products for free and increase traffic to your affiliate links. Here are some ideas:
Write product reviews: Write informative reviews of the products you're promoting, highlighting their features and benefits, and include your affiliate link within the content.
Use social media: Share your affiliate links on your social media accounts and engage with your followers. You can also join Facebook groups related to your niche and share your links there.
Create YouTube videos: Create videos reviewing or demonstrating the products you're promoting and include your affiliate link in the video description.
Write blog posts: Write blog posts related to your niche and include your affiliate links in them. You can also guest post on other blogs and include your affiliate links in the author bio or within the content.
Use email marketing: Build an email list of subscribers interested in your niche and send them regular newsletters containing your affiliate links.
Utilize forums: Join forums related to your niche and participate in discussions. You can include your affiliate link in your forum signature or within your comments, as long as it's relevant and adds value to the conversation.
Remember to always disclose your affiliate relationship and avoid spamming or being too promotional, as it can hurt your credibility and reputation. Focus on providing value and helping your audience make informed purchase decisions.