Hi!
Shameless plug, but have you tried Personara? It uses the big five traits like you have there to suggest motivations and such, and gives a few other tools for character development.
https://play.google.com/store/apps/details?id=com.personara.characters&hl=en_US
I’ve been busy at work the last few months, but I’ll eventually get around to pushing this out of beta and releasing the iOS version.
http://www.makehumancommunity.org/
ManuelBastioniLAB that recently shutdown. But blender is updating to 2.8 soon and probably difficult to get now https://www.blendernation.com/2018/11/26/manuelbastionilab-character-editor-shuts-down/