You should visit hamley's. You will get a lot of ideas from there
A chess board good for the brain and can be played indoors too!
You should check out @Creative_hands229 (Instagram) for best gifting options for kids as well as for adults. You can contact them 8447948367. They provide the best customer service. I really liked it.
I know of this very good personalised gift gallery. They have everything that is customisable and they can courier your product also. You can contact them at 9958071919.
A Drone 🚁 would be a cool 😎👌🏻 idea. So he will not stuck always in front of the screen. It would be interesting and adventurous too.