If you go up to Lyric and Knowledge Search....

Enter Wedding as the word to search for, you will find at least 4 or 5 different threads where others have hashed and re-hashed this question.

Going through them will probably give you a good idea on two or three songs/tunes for sure. There were literally dozens of suggestions in those threads.

I'm sure a JoeClone will pop in and link this thread to some group of them.