>>10128006 LB
LE Anon here...
You are using the wrong terminology, fren.
It's not "relationship maps"
IT'S CALLED 'LINK ANALYSIS'
Try reviewing dis site here: https://www.computerworld.com/article/2507728/enterprise-applications-22-free-tools-for-data-visualization-and-analysis.html
Some of them are ok. The best software, however, costs $$$$.