How many cryptocurrencies does Robinhood Markets offer?

Could you elaborate on the current offering of cryptocurrencies made available by Robinhood Markets? I'm interested in understanding the extent of their cryptocurrency services and the variety of digital assets they provide to their customers. Does Robinhood offer a wide range of popular cryptocurrencies, including Bitcoin, Ethereum, and others? Or are their offerings more limited? I'm curious to know if they have kept up with the latest trends in the crypto space and if their portfolio of digital assets is expanding or staying stagnant. Your insights into this would be greatly appreciated.