Testnet node Chain ID: Goerli Deprecation, and Sepolia Integration.

Currently trying to host a test net node, but have heard that the goerli faucets are being deprecated.

I plan on using the sepolia network and needed to know if its api could be used via alchemy?

I notice in the operator yaml file at the end it gives options for the different chains.

1 for mainet
5 for goerli
And 31337 for local.

While using the sepolia network to run the node which one should I enter for the chain id?