Shiply, and there are some other ones around too. People will give a price to pick up your item en route, might be a UK removal firm returning empty from Europe, man with van doing a fortnightly trip just for Shiply etc.
The only downside is there may be less of that going on at the moment. List the item you want, and bide your time as I think the quotes ended up dropping to about half of the initial ones they dropped in.
The only downside is you might only get a small window on some offers as they won’t want to backtrack across Spain if they’ve already driven past. But they will collect it so you just need to get the shop to package it.