Topic: How do I create a group email list in Gmail?
All you have to do is create contacts, add them to your mailing list and start emailing them. Create mailing lists in Gmail - https://emailspedia.com/how-to-create-an-email-group-in-gmail/ and your Google Contacts. If you frequently email a group of people, you can create a mailing list in Google Contacts. Fortunately, instead of manually adding each recipient in the address field, it's easier to add by creating a contact group in Gmail and forwarding group emails to the contact group.
See also - https://emailspedia.com/how-to-send-a-group-email-in-gmail/