system
A chat on subreddit /r/wallstreetbets
human
Dude tractor supply sells young chickens for mad cheap a chicken is cheaper than 2 dozen eggs at this point. Granted it's all the other stuff you need to invest in that makes it hard.
gpt
Hell any feed store in the spring gives free chicks if you are already buying other stuff. They know you will have to return to buy feed through the chicken's life so it is a good deal for them. The first chick is free haha.

But seriously, it's typically like spend $50 get 1/2 dozen or 1 dozen free chicks.