Traditional:
* Currell: This is a straightforward spelling based on the pronunciation.
* Correll: This spelling is slightly more common and could be of English or German origin.
Unique:
* Kurell: This uses a "K" sound to represent the initial "Cuh."
* Cuhrril: This spelling maintains the "Cuh" sound and the "Rill" sound more explicitly.
* Cyrill: This spelling is closer to the name "Cyril" but still retains the desired pronunciation.
Ultimately, the best spelling will depend on your personal preference and the context of the name's use.