Try variations in Google or DuckDuckGo:
Collectors often merge titles from memory. For example: sweet cindy and jenny model fever 63
If “Fever” was a studio, look for production company lists. Common small studios from that era: Try variations in Google or DuckDuckGo: Collectors often
Search for their old websites on archive.org using keywords like feverproductions.com or model-fever.com. Search for their old websites on archive
Based on similar lost sets, collectors have successfully found content by searching:
Also check Usenet archives (via Google Groups) from 1998–2005. Many glamour sets were announced in alt.binaries.pictures.erotica.* groups before the web took over.
The Wayback Machine (archive.org) and specialized forums hold decades of discussions:
Pick yer 
Yer booty is now 1234 

