The latest issue of The Fossil is available, #378, January 2019. This long-running publication covers the history of amateur journalism. No Lovecraft or related content this issue, but Dale Speirs of Calgary in Canada usefully writes in with some suggestions. He has been the editor of his monthly zine Opuntia since 1991, and with no-one in his family interested in zines, he was wondering where he might reliably archive his scanned zine collection. After some research he chose two and his zine’s run is now…

available free from either www.fanac.com […] so now a complete run of Opuntia is preserved in two places

It seems to me that these two sites could usefully be considered by those wishing to archive fannish material, alongside the obvious choice of archive.org.