Model toys: You can choose some toys that you need to make yourself, and you can train his thinking ability and hands-on operation ability. Boys can choose more masculine toys such as cars and airplanes. Girls can choose furniture, kitchen utensils, Barbie dolls and the like.
Educational toys: Now educational toys are not limited to simple building blocks, but also mazes, checkers, finger painting and so on. You can check it online now. Now many gift websites have introductions, so you can log in for reference.
Electronic products: At present, point reading machines and early education machines are very popular. I guess all his classmates have it. If you give him one, he will feel very proud and happy.
Knowledge: If you know what he is interested in, you can also choose the corresponding gift. You can send him a set of "encyclopedias" or "100,000 Why's", up and down 5,000 years, military encyclopedias ... This series of books has a children's edition series, which is convenient for children to read and remember. Giving children knowledge will never be out of date, and it will also benefit him for life.
I hope I can help you ~ ~