Hard light is often considered a no no, and I have a post on hard and soft light coming. If your into hard light, then I can recommend a magnum reflector.
Here we have a Profoto B10Plus with a magnum reflector. The magnum reflector is not a modifier I call upon often but if you’re after very strong directional light, and a good stop of light boost to what your flash can produce its quite a useful device.
Here I am using it to mimic strong sunlight flooding onto the landing off to the right.