Unfortunately, with chickens, unless there's a good reason it can't live a normal life outside, they make lousy indoor pets.
I'm sure you've seen then in social media, half those chickens are disabled somehow and the other half are not....being kept wisely.
They're extremely dusty with dander, (they also poop every 9ish minutes) you'll need very robust air filtration systems or the bird, as close confines with bird dander can get "bird keepers lung" a permanent respiratory issue or even a condition whose names escapes me but basically acts and has the same effects as a stroke.
No crow collars work by strangulation, they don't work to stop crowing and will often kill them by suffocation.
Chickens need to be with other chickens for their mental and physical health, their health will drop dramatically with no other chickens to bond, preen and talk to. They're prey flock animals, an alone chicken, is a dead chicken naturally, and not having friends or back up puts a strain on them.
They need sunshine, dustbathes, places to run, fly and scratch.
And despite what you see videos of, they usually hate being petted and held, its uncomfortable for one with feathers digging back into their skin and again with the prey animal/stress thing.
I'd recommend getting a small coop outside and 3 or 4 bantam hens, no roosters. They need 6 square feet per bird in the coop at the minimum.
They'll be so much happier and healthier outside.
If a small coop can't be done at this point in time, wait on the chickens and try another small pet, like budgies.
Please remember that very few animals do well alone, you'll typically need one than one.
