James Ryan's Talk of the Town does this https://www.jamesryan.world/projects#/talktown/ https://github.com/james-owen-ryan/talktown. His PHD thesis on curated story worlds is here (https://www.researchgate.net/publication/330855103_Curating_...) with a good write up by Emily Short here (https://emshort.blog/2019/05/21/curating-simulated-storyworl...). The focus is on generating interesting narratives for games and stories, rather than social network simulation or research, but many of the techniques probably apply.