To offer a differing opinion, why is null helpful at all?
If you have data that may be empty, it’s better to explicitly represent that possibility with an Optional<T> generic type. This makes the API more clear, and if implicit null isn’t allowed by the language, prevents someone from passing null where a value is expected.
Or if it’s uninitialized, the data can be stored as Partial<T>, where all the fields are Optional<U>. If the type system was nominal, it would ensure that the uninitialized or partially-initialized type can’t be accidentally used where T is expected since Partial<T> != T. When the object is finally ready, have a function to convert it from Partial<T> into T.