My previous employer made use of GSuite for Education. One thing I have missed from Gmail is canned responses. These allowed me to create and save recurring responses or bits of text that I could insert into other messages. I found out today that this is possible to do in Outlook. Creating these messages is such a time saver. Check the link below to read about how to set it up.
Microsoft Office Support | Create reusable text blocks for email messages
Pro Tip: if you want to make it easier to use your Quick Parts you can add Quick Parts to the new message Quick Launch area. To do so navigate to the item on the ribbon, right-click and select, “Add to Quick Launch.” Then the Quick Parts are only a click away. The animated GIF below illustrates the steps mentioned.