I think https://en.wikipedia.org/wiki/The_Children_of_H%C3%BArin https://en.wikipedia.org/wiki/The_Children_of_H%C3%BArin is pretty great. As noted elsewhere,

I think https://en.wikipedia.org/wiki/The_Children_of_H%C3%BArin https://en.wikipedia.org/wiki/The_Children_of_H%C3%BArin is pretty great. As noted elsewhere, the vast majority of the work in the posthumously published Tolkien material was written by JRR himself.