[BlindMath] Genogram diagram software? (or flowcharting or diagramming )

[Todd Schwanke]

Good afternoon.  A little bit off-topic.  I'm looking for accessible software that works well to make genogram diagrams, but thought I'd open up my search a bit to flowcharting and diagramming software more generally.  Anyone found any particular genograph, flowcharting, or other diagramming software to be accessible for creating and/or reading the diagrams?

Thank you,
Todd Schwanke
UW-Madison