Silmarillion is mostly First Age, with scant coverage given to the Second and none to the Third. Personally, even as a serious Tolkien fan in my younger days, I

Silmarillion is mostly First Age, with scant coverage given to the Second and none to the Third. Personally, even as a serious Tolkien fan in my younger days, I'd find a Silmarillion-based series totally uninteresting and would prefer just about any other part of the canon.