'Best Friend's Son' was a romance novel written by Ru Yu Deshui. The novel was about a female protagonist and her best friend's son. This novel was emotional and sweet, filled with romantic love. However, the specific plot and recommendation information were not mentioned in the search results. Since the search results did not provide any other relevant information, I could not recommend novels that all my best friends are sons.

There could be many stories. For example, they might go on adventures together in the woods near their house. They could discover a hidden treehouse and make it their secret base, spending hours there playing games and sharing secrets.
By being honest with each other. If one makes a mistake, he should be able to admit it to the other. This builds trust.
The thing that makes it interesting could be the diverse personalities of the friends. How they interact and the conflicts they resolve can make for an engaging story. Also, the art style and the way the story is told might add to its appeal.
The following were some recommended novels about girlfriends, which were in the romance category: " The Cold Girl's Cultivation Tribulation "," The CEO's Treasure Book: Unrestrained Wife Spoiling "," The Hourglass in Time "," The Movie King's Road to Love "," The Mysterious Assistant Guan "," The Winter Night Warmth Sun "," Peony Dali Falling in Love!" " Golden Assistant: Best Actor Prince Charming, Please Let Him Go "," I Abducted the Top Prince Charming "," Secret Lover: My Celebrity Boyfriend ". These novels covered the friendship and love between best friends. The plots were different and suitable for readers who liked romance.
The following were some novels recommended for best friends: " Demon CEO, Don't Come Over "," CEO's Treasure Book: Unrestrained Wife Spoiling "," Bestie's Master Has Some Ways "," The Strongest Male Bestie in the City "," Rebirth 70's Counterattack Plan "," The Best Bestie in the World "," Mr. Feng's Wife Spoiling Is a Little Sweet "," Farm Girl, Black-bellied Husband Spoils His Wife Unrestrained ", and so on. These novels covered modern romance, urban life, ancient romance, and other different topics and plots. They were suitable for readers who liked best friend novels.
There are moms who bond with their sons and his friends through sports. Maybe she coaches a little soccer team they are on, or she just goes to their games to cheer them on. This creates a strong sense of community and friendship among them.
My friends and I once organized a mini - sports day for our sons. We set up various games like relay races and sack races in our neighborhood park. The boys were so excited and competitive. It was really fun to watch them cheer each other on and strive to win.
Another story is when my friends' sons and my son participated in a school project together. They had to build a model of a historical building. They divided the tasks among themselves, learned a lot about teamwork and history in the process.
" The Smile of a Thousand Gold,"" The Beauty of the Phoenix,"" The Nature of an Empress," and " Feast of Mountains and Rivers " were four novels that described the transmigration of best friends. In these novels, the four best friends faced various challenges together, including life-and-death tests, wars, conspiracies, and power struggles. The storyline and characters of each novel may be different. It is recommended to read the original novel for more detailed information.
In some cases, the mom might be involved in the son and his friend's school projects. Let's say they are doing a project on local history. The mom takes them to the local library and historical sites to do research. She shares her own knowledge of the area, which helps them complete the project successfully and also deepens the bond between the three of them.