I recently had a look at my Goldsmith collection and tried to categorize them somehow like Western, Horror, Science Fiction, Action, Thriller, Historical Drama, Fantasy. But I found out quite quickly that this is easier said than done because he had so many hybrid projects.
Anyway, I would say, I have a special preference for his Western scores and Fantasy, if we count in Legend, The Mummy and Poltergeist, maybe The Omen.
The topic science fiction by Goldsmith is really a mixed bag.
In a way to me it seemed often that a brillant musician spent a lot of technical effort to sound cheap (I only say “synth farts”).
Also often he seemed to give away his best themes for low profile projects.
Anyway, somehow you don’t get around Goldsmith as a movie score fan, but when I look at him purely as a fan of orchestral music he is in the “weird” corner.