Basically: Clicking the “Killer” icon on eg. the class card for The Assassin should bring up a list of all killer roles.
It’s incredibly annoying to play a role that detects types, since there’s no easy way to review the types at a glance.
Perhaps also add a link to a “magic” list from the Inquisitor, and (in the description of abilities that detect types) turn the word “type” into a button that brings you to a list of all the types, which can then be clicked to see the roles of the chosen type.