Help me choose a tablet for gaming

Hi all,

I have a young nephew (5 years old) which want to buy a tablet for gaming. I was confused because I layman in using the tablet. I Endeavor to find information about the tablet and get a lot of kinds and brands like this I could and not even choose to suit his needs.

This time I would like to ask the opinion of you and give me a great choice for gaming. I hope to get some advice from you so do not wrong in choosing.

Thank you so much!