Can i create a new Apple ID?

See the following Apple articles:

How to create a new Apple ID

https://support.apple.com/en-us/HT204316

Sign in with your Apple ID

https://support.apple.com/en-us/HT204053

About your Apple ID email addresses

https://support.apple.com/en-us/HT201356

Sure. I have another one. I've never used it to post to ASC (don't even think I have it set up with a user name) but I use it for other communications with Apple. All it requires is an email address. I've heard of some people doing that where they might have one personal device using a personal email address and another work device using a work email address.