All my contacts won't sync to my new macbook pro from my iphone 12plus

Unlike some Android devices, contacts are neither stored locally on an iPhone nor in SIM. They are synced to an email account that you had Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other

Add the email account that stores your contacts on the mac mail app and enable Contacts. If you have a corporate email account added through a profile on your device, please check with your organisation's system administrator.