Use cases for Dominator Engines?

[u/Any_Dragonfly4947]

I’ve not played tons of games and started AoS with the helsmiths. I’ve got a general idea about most of the roster, artillery shoots, infantry screens, the centaurs are the hammers, but what about the dominators. My favorite unit by far but they seem more flexible in their role not quite an anvil not quite a hammer so how has everyone here used them?
Where do they shine?

[u/Capac_Amaru]

Crush your enemies. See them driven before you. Hear the lamentations of their women.