Not a recommendation per se but I used to use Amphetype on Gutenberg texts to practise touch-typing. There's something about writing out a book that hits differently to reading it. You skip less, odd parts stick with you.
I think the last one I tried was The Island of Dr Moreau.
Ulnar Nerve Entrapement :/
From the newest releases page I stumbled into "Some Nigerian fertility cults" by Percy Amaury Talbot & am enjoying it so far.