How do I report a series of phishing emails received today?

Here,

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Honestly, although there is an email address you can send the phishing emails to, it's not going to make any difference in either the short or medium term. And probably not in the long term. Apple has no power to do anything about it. And law enforcement has limited abilities to do anything.

Learn to use spam filters.

You can forward the emails to reportphishing@apple.com.