Menicon makes care products for rigid gas permeable and scleral lens wearers, a group the mainstream solution aisle tends to skip past. Three lines cover most of what a GP wearer needs day to day: Unique pH for storage and conditioning, LacriPure saline for filling and rinsing, and Progent for a periodic deep clean.
Two practical notes. Progent should not be used on lenses treated with Tangible Hydra-PEG, because it can damage that coating, so check with your fitter if you are not sure what your lenses have on them. And scleral wearers usually need both a filling saline and a storage solution, since one does not do the other's job.
If sclerals are new to you, the large diameter case is worth adding, because a standard case is too small for the lens and forcing one in is how lenses get scratched. Your fitting practice can tell you which parts of this range suit the material you were fitted with.