Go is a great language for building GraphQL servers, the https://github.com/99designs/gqlgen library helps you by build type-safe GraphQL servers and reduces the boilerplate. You can find an example here: https://github.com/prisma/prisma-examples/tree/master/go/gra...

Otherwise I'd recommend TypeScript - the tooling ecosystem around GraphQL is definitely most advanced in the JS space. If you're interested, you can check out an example here: https://github.com/prisma/prisma-examples/tree/master/typesc...