Christmas present for my son

I feel so bad because I have no idea what to get my 3 year old son and I feel like I’m going to run out of time. I literally have no clue what to get him. He likes cars and trucks but he has a ton already. He has basically every paw patrol created. He has a power wheels. He has so many toys and books already so I don’t know what to get that will be exciting and new for him. We also have a lot more bills this year, so I’m kind of tight on money so I feel even worse because I won’t be able to get him a lot. The presents under the tree are going to look depressing since there probably won’t be much. 😥