Another one is 'Me Before You' by Jojo Moyes. It's about two people from different worlds falling in love. There are many obstacles in their relationship, which is a common theme in 'Beautiful Disaster' as well. The story is very moving and has been extremely popular.
Yes, 'The Fault in Our Stars' by John Green has a similar emotional depth. It's a love story that deals with difficult topics. The characters' relationship is both beautiful and tragic, much like in 'Beautiful Disaster'.
Also, 'Outlander' by Diana Gabaldon. It combines historical elements with a passionate love story. The relationship between the main characters is complex and full of drama, just like in 'Beautiful Disaster'. It has a large fan base and has been very successful in the best - selling lists.