301 redirect link building
Give them a heads up about the link's status and gently suggest they add it to their site.
Comprehensive guides can contain a lot of information on one page. My guide to link building actually has 4,834 words.
If infographics are not working for you, there are other visuals that you might consider.
The infographic is at the top of all content images. Without great infographics, you're less likely get backlinks. The key to attracting a new and loyal audience to your website is great content.