You can make wikis that plot out various factions and countries in ways that flow for the reader. You can upload maps and even pin them as the campaign progresses. Your party can create and maintain conspiracy boards of important NPCs (shoutout to my Strixhaven crew).
With more tabletop roleplaying games (TTRPGs) happening online these days, you might be exploring your virtual tabletop (VTT) options. We’ve checked out some of the best VTTs around so you can find the perfect fit for your group.