Alinks

Alinks is an SEO module that automatically replaces keywords with links based a list of keywords and links.

Setup the phrases and links you want through the administration interface and the module will replace the keyword phrases in the body field with a links to the pages to specify.

Drupal 8:

Alinks for Drupal 8 was ported in large part by Webflo, Ueberbit, and Christian Fritsch. The module currently requires composer to manage its external PHP dependency. Improvements are welcome.

Main features:

• Replace terms or keywords in the content body with a link.
• Does not change content as it is executed on display only.
• Can set the number of occurrences to replace.
• Can set which content types it will affect

Recommended Module:

External Link adds link icons and target="_blank" to external links. The Drupal 8 version currently requires composer to install for its external PHP dependency. Assistance improving the port is welcome.

Similar Modules: - most seem to be in need of new maintainers

• Glossify creates automatic links based on node titles or taxonomy terms. Links can either point to nodes or terms.
• Link Intel is a link automation tool that also includes a sidebar block.
• Word Link - Clone of Alinks
• Active Taxonomy Links - similar to Glossify except that it only works on taxonomy and it alters your content.
• Wordfilter - replace words with other words instead of links.