Dialogic 2 is a powerful plugin that lets you easily manage your dialogue in your game. It games with a more RPG Maker-like event system for easy visualization and has many many other options.
It didn’t work with AGMaker due to incompatibility, but after a little trial and error I got it working with AGMaker and even provided a way to communicate to it through visual script for non-coders!
Download and instructions can be found on the github page (video coming soon):