I would like to learn how neo4j can support online investigation activities (multiple data-sources, tons of different kind of data, multiple languages, hidden links in multiple social networks, etc.).
Neo4j is your way, but be careful because some times Neo4j can be slowly and has low performance. Btw, u need to know programming language to create a tool for OSINT.
May I ask u about your task in OSINT? I'm interesting OSINT