Dietz
Space Explorer
If it's really about mixing and positioning, too, and not just about reverb, there's yet another option for you:Which one would be good for glue different libraries,cover all around mixing needs?
-> https://www.vsl.co.at/en/Vienna_Software_Package/MIR_Pro_3D
If all you want is a generic reverb engine you should also consider this one, as it doesn't rely on convolution, but is fully algorithmic with a surprising amount of different colours in impeccable quality:
-> https://www.liquidsonics.com/software/tai-chi/