A Dog's Journey (2019).

Bailey is a special dog, according to the story he has the ability to reincarnate or return in different dogs during the film, which at the same time develops a story of the life of a girl who faces family problems since the death of her father and Gloria, her Mother definitely does not know how to overcome the situation.
Ethan, was CJ's grandfather; a sweet girl who had lost her father in early childhood (son of Ethan and Hannah). Faced with this fact, Gloria, who is CJ's mother, decides to leave the farm where she lived with CJ's paternal grandparents and decides to start a new life.

When this happens, Ethan entrusts his beloved pet to always take care of his granddaughter and one day bring her back home, safe and sound. Then, over the years CJ grows and has not had a beautiful love life with his mother. However, after having enough courage, he leaves and ends up living with Trent, his best childhood friend. Soon, Trent is diagnosed with cancer and it is CJ who helps him in his healing and recovery; At the same time that Trent helps CJ take his dream of being a songwriter and singer. In this fact, Gloria and Trent influence a lot, in addition to Gloria delivering to CJ some letters that her father had written; motivating him to write some tender songs dedicated to his family life.
After a while, Trent is healthy and together with CJ they decide that the latter should return to his grandparents' house and it was a beautiful meeting; which also unleashes the emotions of CJ and Trent who end up realizing that they are in love. But, one of the most emotional facts is when Max, CJ's current dog has Bailey's soul and makes a morisqueta with Ethan. But, shortly afterwards Ethan is deteriorated in health and dies; Soon Max also dies. Mega Spoiler: At the end of the movie, Bailey meets his Master Ethan, in a space similar to paradise, where they both run between the fine pastures.

My opinion: