Fluent GraphQL clients allow developers to write GraphQL queries as objects instead of strings, making code more readable and efficient. These clients offer strong typing, a single source of truth for type definitions, and autocomplete features. Examples of fluent GraphQL clients include gotql, graphql-zeus, gqless, graphql-typed-client, typed-graphqlify, graphql-codegen-hasura, and graphql-binding. These clients can be particularly useful for Hasura users who are building apps with TypeScript or custom business logic using actions or remote schemas.