Watch Lightning Watch Uzumaki Watch One Piece
If you love One Piece, you should consider watching Uzumaki Khan while he watches One Piece. He has hilarious reaction videos. You should also consider watching The King of Lightning's reaction videos as well. Both are pretty entertaining.
And if you think those are great ideas, try watching the King of Lightning watching Uzumaki Khan watching One Piece. If you pause the video at 0:59, Sengoku will be watching you.