There are many other cryptocurrencies besides Bitcoin and Ethereum, and many people trade them. Some of the most famous include:

* Litecoin: Known for its fast transactions and low fees.

* Ripple: Focuses on facilitating international payments for banks and financial institutions.

* Cardano: A blockchain platform aimed at running decentralized applications and smart contracts.

Of course, the cryptocurrency market is very volatile, and there are always new coins emerging.