Want a Canon fisheye lens for your EOS R camera? Currently, you're out of luck. Ditto, come to think of it, for a tilt-shift lens.
You can, of course, adapt an old DSLR lens like the Canon EF 8-15MM f/4L Fisheye USM. However, if you want an RF mount Canon fisheye lens, you'll stumble across one of the remaining gaps in the EOS R system.
