what do the invited schools offer? and other questions

So Rival Academies just released, and sadly i don't have the money to buy the pdf right now, so Im kind of relying on the demiplane and Pathbuilder's info out of context, and I am struggling to understand everything that was given to us here, so I would like some help answering some questions.

Firstly, while I know what the main six schools each have to offer, did the invited schools also gave something, I know there is the new Runelord but I wanted to know if there is anything else.

second, what classes fit better with each archetype?