Some suggestions Skave
Medical nonfiction
When breath becomes air. The story of a young Dr who develops lung cancer. Absolutely brilliant writing. Very deep and poignant.
the Emperor of all Maladies. History of our fight against cancer. Disappointment after disappointment until finally we begin making progress. Very good and you will learn a lot.
Fantasy
If you want to read a great fantasy series read Robert Jordan’s The Wheel of Time...first book is The Eye of the World. If you do not want to devote the time to reading 13 books 800-900 plus pages long, you can watch the TV adaptation which will be coming out on Amazon soon. It should be good as it has a bigger budget than Game of Thrones on HBO.