I just want a classic Dwarven view on whatever the hell has been happening in the realms these past 100 years.
A companion who could size the PC up while imparting some information in the process.
Honestly having a Goblin camp and all these caves and even the Underdark in the EA, with no Dwarves around to provide a running commentary on it is just sort of depressing. As a fixture in the genre they should at least be getting the love that the Gith and Tieflings have received.
I'd prefer an archetypal Dwarven brawler, and it would be nice if they had some unique stuff to say if the custom character also happens to be a Dwarf.
If anything I'd like them to go more oldschool with this one than newschool. We don't need a "fresh take" for Dwarves, but a touchstone. Keep it classic.
Or if they really want to step away from Tolkein's Khazad/Naugrim vibe just a bit, then maybe go more Alberich style? The og trickster Dwarf with a Tarnkappe angle, driven by greed, always solid for a rogue or fighter with a thieving bent. But not too far off the beaten anvil for this one.
A Fighter or STR Cleric option, a Warpriest type or Paladin would work. A Fighter Rogue or Skald with some stonelore and a lust for gold and gems could also work well. But they should definitely hold their own in a brawl. No squishy Dwarves please.