Hybrid is a rare example of a schizo rant in the form of an RPGhttps://web.archive.org/web/20030213163300/http://perso.wanadoo.fr/philippe.tromeur/hybrid.htm
A personal favorite of mine is lennonmurdertruth.com
Frank Chu is a good one. He's not exactly ranty, but unlike a lot of these serious schizos he's not angry all the timehttps://www.youtube.com/watch?v=Kg8rQbVQFEQ
Daniel Larsen is the current big thing in the schizo-watching community, but he's less fun because of all the psychopaths who are actually fucking with him.
You can also find a ton of schizo rants by looking up "gangstalking" on Youtube
Here's a video of some schizo saying bizarre shit. It's not a high-quality video, and his psychosis is mild compared to a lot of schizos, but the background is interesting. The schizo is a guy named Neil Brick who seems to work with licensed therapists and the video was taken by an actual Satanist (the channel is an organization in the Satanic Temple).