A ring in the lip or two is among the most beautiful piercing you can have, here you will find a few different models that can fit well as a lip ring.
If you have a piercing in your lip and want a ring, it is important that you measure so that you get a size that fits, measure from the top of the lip (where the lips go together) to the piercing hole itself, add 1-2mm.
Of course, most "regular" rings also work and you will find them in their own categories.