Home of the Brave, a novel-in-verse by Katherine Applegate, is a moving story about Kek, who as a refugee from Sudan who as seen atrocities never loses hope of seeing his mother again. This story has an authentic and perceptive voice, beautiful language and touching characters who shoulder their resiliency in different ways.
If you loved Inside Out and Back Again, this is a great choice, albeit for slightly older readers (upper middle grade to teen and up).