Hello both
Nice plant
I agree with Baja that this is not aloe castillioniae and probably not a direct hybrid of it . The plant does not jump out as any of the most common named ones I have seen, but it can be difficult some times with the same hybrids showing quite different colours and forms depending on growing conditions.
There is quite a decent galleries here and on agaveville
https://www.agaveville.org/vie...
I have many hybrids, some you ID quickly , others take a little longer and still others you never find out, so it's best to enjoy the guessing game and try not to worry too much about it 👍
Steve