Go to “social” on BYC, then “where am I, ..” to find the pinned state post. Find your state, ask there.
Always best to pick up in person if possible, so more local is better. Less stress on chicks.
I found a Hatchery that I use by googling “chick Hatchery” in maps. And when I only want a small number added last minute to sn order, or want to pick up a small number of chicks that I didn’t order, I can call and see if possible, and so far, they have always had some extra at each hatch I’ve called about. So, possible to find one by googling.
Another place to look is for farm pages on fb. Cannot sell animals on fb, but a farm that shows chickens in pics, may have chicks to buy.
Livestock auctions exist, and another term you can Google to see if any in your area.
Craigs List allows for animal sales, so that’s another option.