Doyle has several other worthwhile works. And his
Brigadier Girard series is a pretty fun romp.
He always considered his 'other works' more important to him than Sherlock...in fact, he disliked Sherlock quite a bit... but it was his cash cow.
When he killed Sherlock off at the Reichenbach Falls, the public pitched such a fit he ultimately brought Sherlock back...though it is universally felt the returning Sherlock was never quite up to par with
the one who died.
Anyway, several of his
novels are worth the read as well.
One need not spend a lot to get hold of him.
The Complete Works of Arthur Conan Doyle is available digitally from Amazon for a mere $2.49. Very worth the price to get him in hand.