I can think of Silvers, Satins, Silver Fox, Silver Martens, and the standard Chinchilla. And there's also the Satin Angora.
Satins are an American breed, recognized both in the US and in the UK. They have somewhat different standards. In North America they are an approximately 10 lb rabbit, with a classic commerical build which comes in a variety of coat colours.
Silvers, are also recognized in both the UK and the USA. In North America, Silvers are a 4-6 lb rabbit. They date back to the 1500's and are thought to have come from Portugal. They have a dense flyback fur coat. The rabbit is "primarily brown, fawn or brown, and intertwined in its fur are white guard hairs, which give the Silver rabbit a beautiful silvery luster."
I admittedly get a bit confused between the silver and the silver fox. The Silver Fox another old breed of rabbit, but was developed in the United States. A large breed rabbit that weights 11-12 lbs, with silvering starting at 4 weeks of age. This rabbit is blue or black in colouration with silvering.
The Standard Chinchilla. I happen to love the chinchilla colour on rabbits and this is a breed that I have often wanted to have. A well put together meat rabbit with this silver agouti look is a wonderful animal to behold. I was delighted when this year I produced this colour in one of my holland lops. Now Chia pictured below is NOTHING compared to the Standard Chin. They are a 6-8 lb rabbit hailing from France, they have bigger cousins in the American and Giant Chinchilla's so basically there's a size for everyone! :) The Standard Chin is a compact rabbit with rollback fur and erect ears
"S" rabbits new to me
The Siberian rabbit was originally developed in the 1930's for use in the fur trade. The short, dense fur mainly come in blue, brown with a pearl gray undercoat, black with a blue undercoat, and lilac. It is a docile breed weighing 5-8 lbs.
Egypt gives us the Simennwar rabbit, This is a dwarf breed weighing 2.5-3 lbs.
Unsurprisingly the Slovenian rabbit, a 7-11 lb rabbit comes from Slovenian. It's coat has a yellowish-brown undercoat overlain with blue. The tail and belly are white.
The smoke pearl rabbit has erect ears, weighs 5-7 lbs and comes in a specific colour. You can see a rabbit vary similar to it here on pinterest. Scotland claims the creativity.
The Spanish Giant has flemish giant as part of it's origins, which came from Spain. A large rabbit weighing 12-15 lbs. They only live up to 6 years and are currently facing extinction.
The Stone rabbit from Belgium is an agouti rabbit in red, grey and steel. It weighs around 6 lbs.
Others in this series.