Having the name of your spouse tattooed on you (in my opinion) is notorious for being bad luck and unoriginal. I think though that your idea about some sort of symbolism is a much better choice. Since I don’t know you I can’t really make a suggestion other than think of something that means a lot to the both of you, maybe you want to get a tattoo representing a special memory you shared, an important place you have both traveled to, or even something that symbolizes your love.