If biomedical research and paper analysis is of interest to you, I've been working on a set of open source projects that enable RAG over medical literature for a while.
PaperAI: https://github.com/neuml/paperai
PaperETL: https://github.com/neuml/paperetl
There is also this tool that annotates papers inline.
AnnotateAI: https://github.com/neuml/annotateai