Gloranthan Cult One pagers are an attempt to gather together in a single page (well sometimes two pages) format the main cult information. Your game system may vary (Runequest versions or even Heroquest) but you might still find something useful in here even if you are not using the exact same version of game system - this is material I have created for my campaign over the years. It relies on multiple sources but might not be exactly canon even if I have tried to follow that as much as is useful for my campaign.
Gloranthan Cult One pager contains the following parts (if I have been able to find out the information from a source or invented it in case of some)
Name and the main purpose of the cult
Runes
Requirements to Join initiate
Requirements to join - rune level
Cult skills
Folk magic for Initiates
Theist Miracles (Rune spells)
Pantheons the cult belongs to
Sources
Areas the cult (thru its Pantheon or otherwise) can be found
Personality traits that the runes of the cult expect members to personify
Opposite runes.
Enemy, Hostile, Friendly and Associated cults
Holy Days and High Holy Days
Spirit Societies the cult belongs to or is associated with
Totem animals the cult's spells can command or speak to
https://notesfrompavis.wordpress.com/2017/05/27/gloranthan-cult-one-pagers-renewed-main-page/