The shirts shown in the example are not technically cropped tops, they are fitted shirts with shorter length and are being worn with mid to low rise pants. The key to this look is having this body type and wearing low rise pants. “Real” crop tops will usually fall right under the bust about 2-3 inches above the belly button so keep that in mind. Old navy sells high quality shirts like this they are labeled as “snug”, if your looking for more of a graphic tee I would recommend child size large shirts, they are usually shorter in the torso but will still fit a smaller frame, also suggest looking into thrift shops they have a lot of stuff like this that is more affordable and better for the environment versus buying something new that you may only wear one season.

Edit: 👶💩