I remember liking Stormbringer a lot (spoiler alert: the one where the sword kills him in the end), when I was young. I tried reading the other Elric books and found them a bit meh. I felt Moorcock was just knocking stuff out of no great quality.
But Moorcock is an interesting character. I recall an interview with him talking about hanging out with Arthur Clarke in bars in the fifties, and how despite Clarke's boyfriends, that he felt Clarke wasn't really gay, but just preferred boys
He was truly at the heart of what for us now seem like a mythic time in science fiction.