Books like tokio blues with the topic of the death and continue after lost a person who you love ( can be about broke or the death)

Sorry if i have gramaticals error but i speak spanish, i really love tokio blues and like about 2 month i broke with my girlfriend but i miss him to much and i see she everyday because we studied together so i want to continué and not forget him i only want accept that we can no longer continue together, and about the dead because i lost my brother like 3 years ago but i miss him to, please recomend 🙂