It is now super easy to add a really classy template to your SharePoint Site Collection, to make creating a high impact and engaging site really easy. All you need to do is firstly login to your Microsoft 365 environment as a global administrator and then visit:
https://lookbook.microsoft.com
Next, just select the template that you like and press the button to add it to your tenant. In less than five minutes you’ll have a stunning starting point for your collaboration site.
If you want to see that in action just watch the above video.