Can you change your Apple ID?

You can change it to use a different email address, or you can use a completely different Apple ID.

Note that all purchases and subscriptions are tied to the Apple ID that made the, and cannot be transferred to a different Apple ID. In that case its better to simply change the email address its using rather than creating a new Apple ID entirely.

The link provided above will let you update the email address being used, but will retain access all purchases and subscriptions.

See information in Change your Apple ID - Apple Support