There are multiple varieties of "top hat" chicken - IIRC (its been a while), there is the Polish and Houdan.
The silkie is a banty with an unusual texture to its feathers making them look more like fur. It does have some extra fluff on top.
Lots of beautiful chickens out there. My current collection could use some new blood (I'm looking at the Silver Dorking for next year), and some culling. My elderly Cochin banties have escaped the soup pot even though seldom lay anymore. They are friendly and cute. Not the case for the prolific Barred Rocks (I must have a bad strain) - good winter layers, but aggressive birds. Unexpected, because one of my favourite chickens appeared to be a Barred Rock. She came to us nearly naked of feathers - a neighbour found her. I kept her in a dog crate for a while to get her strength up. She passed away a couple of years ago - RIP, Vivian.