What's the best path to change to a republic?

I'm playing as the Maya, I am past the Great Pestilence now and have gotten institutions from GB and France, weirdly no Spain or Portugal in the New World (that I know of) on this run.

Anyways, I want to rush towards becoming a republic, but I need a TON of plutocracy value for it, and I am struggling to increase it.

I have the obvious ones like burgher controlled mining law, plutocratic ethos government reform and all the Burgher policies that give plutocracy, but that's not even close to getting me to the required amount and I do have to have some aristocracy stuff too because I have no real alternatives for a couple laws right now.

I've yet to research most of the tech tree, do you guys know what I should beeline for? If you have switched to a republic before what did you do to get it asap?