I’m a big fan of Dr Johns Chili ( 20 pounds in 20 weeks), although I do admit I simplified it by leaving out the cashew meal and I often leave out the beans. The recipe as written is HUUUUGE and I only ever make half of it because I would need a multi gallon pot to make it as written.
You might look up the Stew-roids series over on Chaos and Pain too, lots of great recipes in there