Specifically this breed that's very rare, they're called Miniature Siamese Silkies. Most silkies have black skin these have lucid skin, their cheeks are irredesant and cockerels have a prominent red comb making them easier to sex early
And probably some Dutch Bantams
Also many other bantam breeds.
That's pretty cool! I'm hoping to slowly stop raising chickens, otherwise I would ask you if I could have some! The combs would be really handy, I just recently found out my silkie is a rooster, and he's almost at the egglaying stage. (If he was a hen, of course. )
Hopefully setting up a business to raise rare bantam breeds so I'm super excited for that.