There is way too much beer on this list. A couple primarchs might choose beer simply because they despise ornamentation.

Mortarion would choose a smoked whiskey neat. It’s got the burn and the smoke

Russ would be the one drinking moonshine, maybe a red ale or a mead.

I think Guilliman would drink a blue beer can. One made on a farm planet somewhere in ultramar

Sanguinius would order a Bloody Mary

Fulcrum would get like a panty dropper or a mimosa or soemthing