There are three types of guides to choose from:
Places: use to build a travel guide on a city/country
Products: use to recommend products you sell or products that other brand sell (you need to be following the brands page to see their posts). You can go further once you select the product and choose from ‘Your Posts’ and ‘From Shop’
Posts: use to group posts together either ones from your account or ones that you have saved.
Once you have done this, click next at the top left. You can add a title and you have the option to change the cover photo and then share to the Guides section of you Instagram profile. All your Instagram guides will be held here. You can also add a few stickers and share this to you story or copy the link and share it somewhere else.