People seem to have different favorites, but a few constants are to break it
near a bathroom if possible.
Have something small - some nuts or olives seem to work best for most people - and let that settle for a while (an hour or so?) before you try a meal, and probably a small meal for your first one.
Eggs as a fast-breaker seem to work for some folks and are a disaster for others.
Congratulations on your fast! How do you feel?