Can’t create new Apple ID on new ipad

See -> If you see a Could Not Create Apple ID or Could Not Set Up iCloud message

If you see a Could Not Create Apple ID or Could Not Set Up iCloud message - Apple Support

If you have followed all the steps and instructions and if you still need help, get more help and assistant from Apple directly, see Contact Apple for support and service -> Contact Apple for support and service – Apple Support (UK) 

BTW:

You are sign in here .  .  .  with your Apple ID & Password.

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

What happens when you use the same Apple ID & Password that you use to sign in here?

See also -> Sign in with your Apple ID -> Sign in with your Apple ID - Apple Support

Go to Settings

Mail

Accounts

Add Accounts

Select iCloud

Select "Create a new Apple ID"

Follow the prompts to establish a new AppleID using an iCloud email address.

You can also create a new AppleID (using an existing email address, not currently associated with another AppleID) by visiting this site:

https://appleid.apple.com/account

See -> If you see a Could Not Create Apple ID or Could Not Set Up iCloud message

If you see a Could Not Create Apple ID or Could Not Set Up iCloud message - Apple Support

If you have followed all the steps and instructions and if you still need help, get more help and assistant from Apple directly, see Contact Apple for support and service -> Contact Apple for support and service – Apple Support (UK) 

Then I would suggest using the website link. That shouldn't have any affiliation with the accounts on your iPad.

If for some reason you can't even do that, using your iPad...then try that site on a different device. That should work