You can link the “Featured Image” to the “Custom Field Values” using the Post Grid Combo plugin. This article will help you link the “featured image” to the Custom Field values.
To begin, insert the “Featured Image” block.
Click on the “Featured Image” tab.
Now choose “Custom Field” from “Link to” to link the featured image to the custom field value.
Add a “Custom Field Key” to link with the featured image.