Gift ideas for 7 year old boy

I have the hardest time buying gifts for my nephew, so I’m looking for some ideas.

My sisters suggestions were that he likes fornite, WWE, and legos. He has soooo many Lego sets and WWE figurines and I don’t want to get him something he has already on accident.

I’m on a budget. There’s a lot of kids in our family so I try to keep it between $25-30 a kid. Any ideas? (For his birthday in August I got him a skateboard that I don’t think he ever even rode on once 😭)