Yeah, Eve Survival is still up. I mainly use it for Epic Arcs so never really looked at the Cosmos section before until you mentioned it… Doesn’t have a lot of missions listed.
https://eve-survival.org/wikka.php?wakka=MissionReportsCOSMOS
Years ago I used these guides when I ran Cosmos .
Cosmos Agent Locations
http://web.archive.org/web/20160225225004/https://wiki.eveonline.com/en/wiki/COSMOS
Amarr Cosmos Guide
http://web.archive.org/web/20160225230248/https://wiki.eveonline.com/en/wiki/Amarr_Cosmos_(Guide)
Caldari Cosmos Guide
Minmatar & Gallente Cosmos Guide
All Factions Cosmos Guide
http://web.archive.org/web/20160226001044/http://www.hb3.info/cosmos/
EDIT:
‘The Plan’ can help a lot if you’re looking to build up standing with all Factions.