The Either monad (also known as Result) provides Go-like error handling, but automated. You only check manually for errors after the last call, the monad handles the process.

But this is just one example of a monad, there are many more.

Whenever I try and get a proper explanation of a monad from the internet I get these miserable opaque examples which make me go "sorry I asked!" But I think a monad is basically just single type that when unwrapped gives you the result of a calculation and some metadata about the calculation.

I think it's more like Rust's Result or Option types then go's tuples but I'd say they both basically count.