Yes, there are 18 different options for selecting chains when using the platform. These include popular choices like Ethereum, Bitcoin, and Litecoin, as well as lesser-known networks like Polygon and A bitrum. Each of these networks offer different features and advantages, so it's important to do research and find the one that best suits your needs. For instance, Polygon is a Layer 2 scaling solution for Ethereum, allowing for faster and cheaper transactions. A bitrum is a next-generation blockchain platform that is designed to be highly secure and efficient. Depending on your use case, one of these networks may be a better fit than others.