Random, but I got my first tattoo on the inside of my forearm and my wife loves it because she can see it while I drive. I got it before I even met her, but it worked out in my favor lol.
Definitely pick a spot based on the tattoo you want. Mine fit best horizontally because it’s clipped from a Calvin & Hobbes panel. Like others have mentioned, if you’re shy about having one, consider something easily covered vs somewhere less painful.
Amazed no one else has mentioned The Fifth Element. It was planned at one point I think but got cancelled.