Search for on retro-focused forums such as:
"@context": "http://schema.org", "@type": "CreativeWork", "@id": "urn:hearto:1g1r:ITEM_ID", "name": "TITLE", "creator": "CREATOR", "datePublished": "YYYY-MM-DD", "inLanguage": "en", "license": "LICENSE_URI" Hearto-1g1r-collection