Delivery pick-up points, which way to go?

Hi All,

I have read: https://help.shopify.com/en/manual/fulfillment/shopify-shipping/pickup-points
This is only available to stores in France, Italy, Spain, and the UK

I have read: Generate pickup points
but the API isn’t supported in the latest versions, see: Pickup Point Delivery Option Generator Function API

If I want to offer pick-up points as delivery option, which way is the best way to go?
I want to generate / show them in real-time, the closest available pick-up point based on the address information and the API of the carrier in a specific country.

Regards, Peter