I am excited to announce that the D8 port of the Autocomplete Deluxe module has been released in “beta”! 

What does it do?

The Autocomplete Deluxe module provides a widget that enhances the default autocomplete field in Drupal. It uses jQuery UI autocomplete and provides a slick visual element for content editors to reference terms - displaying them inline, drag-n-drop reordering, and creation of new terms from the field itself. It works out-of-the-box and no 3rd party libraries are needed.