Over here in Europe there's good variety in the van market, which is functionally equivalent to the Pickup market in the US.
There may be an unmet demand in the US for some of the smaller vehicles. Most of the big car manufacturers here in Europe offer vans: Ford, Vauxhall/Opel, Mercedes, Renault
Here's some examples if you're interested in looking at some of them -
Smaller car-vans - like the Ford Fiesta, and Vauxhall/Opel Corsa both have (or used to have) van variants.
Small dedicated vans - like the Ford Transit Connect, Vauxhall/Opel Combo and Volkswagen Caddy
Regular vans - like the Ford Transit Custom, the Vauxhall/Opel Vivaro, VW Transporter
The Larger vans like the Mercedes Sprinter and Ford Transit you may be more familiar with.
In the UK where I am - Rural postmen, as an example use case, make heavy use of vans like the Transit Connect and Vauxhall Combo as the fleet vehicle of choice.
Regular Tradesmen (plumbers, builders, plasterers) for example tend to use tall panel vans like the Transit or VW Crafter as their weapon of choice.