From local food sources for each city. It isn't like the non-pendant wearers can cross cities without an escort and I haven't seen a person with a pendant offering intercity courier services lately, or I'd get them from Attleton's farmers market for all the branches. Though personally for coffee beans, I prefer the Paris subarchway.

[ And you can't beat Fayren's fish market, but it's not like a bakery/cafe is selling fish... Those are just Weiss's personal preferences. ]