The human heart doesn't have one single, definitive shape, but can be described as having several possible shapes. These include elliptical, conical, round, valentine, or trapezoidal.
Depending on the individual heart in question, it may most closely resemble one of these shapes. For example, a plastinated human heart cut coronally, as mentioned in the reference, exhibits a trapezoidal shape.
In summary, the heart's shape is variable, encompassing several possibilities.
