I only have first-hand experience with Cubase Pro (currently v9) myself, but my understanding is that any current (v9) Cubase edition can host VST instrument and effects plug-ins, and so should be usable in principle for the purposes of apply a VST plug-in effect (e.g. room correction) to Hauptwerk's output:
https://www.steinberg.net/en/products/cubase/comparison.html
The more expensive editions of Cubase are bundled with more VST plug-in effects (convolution and reverbs, for example), in case that matters to you.