This is the best shoulder movement after ohp. Its controversial but absolutely safe if you step under the smith a bit so youre in a angle, externally rotate your delts & puff out your chest, semi wide grip.
I dont feel any discomfort that way. I externally rotate my delts to the extent the thumbs is up a bit, pinkie pinned to the bar.

This is how you load your side delts properly. Theres no other exercise that does it better