What to read after Meditations?

Some books can be considered as a constant reference for our life, as friends whose voice may reach us from afar, but that we feel close to our problems and questions.This is the case of the "Meditations" by the Roman emperor Marcus Aurelius. Written over 1800 years ago, has always had a remarkable attraction to the most diverse places and people, who recognized themselves in the experience and existential reflections of its author. The book is still very topical for the attitude of research and self-analysis, of touch with inner life, which makes it an exceptional human document, rather than a historical and philosophical one. Within what actually is a spiritual diary, I wanted to find some reading paths that will highlight its fundamental themes.