Finding Pickup Locations (EU, France, UK)

France has a service specifically designed for this sort of thing, called Poste Restante. You can send packages to yourself to be collected at a post office. See the link for more details.

Avec le service Poste restante, vos courriers et colis vous attendent dans le bureau de poste de votre choix : confidentialité assurée et remise en main propre garantie.

With the Poste restante service, your letters and parcels await you in the post office of your choice: confidentiality guaranteed and guaranteed delivery by hand.

Opening times are reasonable business hours:

French post offices are generally open 9:00 a.m. to 7:00 p.m. Monday to Friday, and 9:00 a.m. to noon on Saturday. However in smaller towns and villages offices may close earlier and for lunch, while in Paris the main post office is open 24 hours.

In France there are quite a few networks of delivery locations. Many sites will allow you to pick a location to deliver to at the time of order (it may in some cases reduce delivery charges).

The issue is that as there are several different networks, it may be difficult to find a single location you can get everything delivered to. A few locations belong to 2 or 3 of the networks, but it's uncommon, as far as I know (though the situation may be different in rural places compared to larger cities).

Note that in many cases, even if you give a regular delivery address, if you are unavailable at delivery time, they will automatically drop it off at the closest delivery point and send you a text message with the details. Some drivers are very prompt to decide you are unavailable :-/

In one of your comments you state you need to pick up on sundays, but THAT is going to be a real challenge.

There are also a few services with automated lockers in some locations (including train stations), but I have never used them so I can’t quite comment.