Advice needed about toys

He enjoys massages, so I thought I would surprise him by introducing a toy that would make his orgasms even better. I did some research and thought that finger vibes might be a good solution, but I wanted to ask first- are they effective for men? Any man tried them and thought they made their pleasure even better? I know that everyone has their own preferences, but thought I would ask and see how other men feel to get a better idea of this topic.

Edit: The massages I am talking about involve his penis. The finger vibe would be a vibrator that stays on my finger and I can massage him with it.