There are multiple plugins out there that add some sort of AutoComplete address functionality to the checkout: https://cld.wthms.co/h6IpHi
We currently have support for some of these:
- WooCommerce Address Validation: https://woocommerce.com/products/postcodeaddress-validation/
- ClickToAddress Auto Complete: https://wordpress.org/plugins/clicktoaddress-auto-complete/
If you are using a different plugin, we are adding support for that on store-by-store basis so please contact us.
This idea is to keep track of other plugins people are using and track which others we should add support for.