Best way to build the shoulders, and the safest. Seated military barbell press to the front. This nails the front and side of the belts.
For real delts, standing one arm dumbell high row similar to starting a lawn mower yet higher elbow.
Just place your opposing hand on your rear delt when performed to feel the contraction.
Laterals are a waste of time as is rope pulls and upright rows.
Imho