Interesting, thanks for the review. This seems an under-represented area for plugins. Searching for a non-Gutenberg version, I came up short, but did find this which looks similar to 'Bookmark Card' >> 'Visual Link Preview' (block) https://wordpress.org/plugins/visual-link-preview/ And library/directory links >> https://wordpress.org/plugins/link-library/ https://wordpress.org/plugins/simple-link-directory/