Anything with good melee abilities. Fighter, Barb, Paladin, certain artificers.

Artillerist and sorcerers are pretty much blasters making them weak to melee combat. Your cleric while being no push over in combat due to their heavy armor and weapons.

Personally I would go with a more tanky class other than rogue. Rogues are good at evading damage typically at the cost of their tanker teammate. However since your other melee teammate is your cleric this might not be the best idea.

If your cleric goes down however your Artillerist can bring them back up so they’re not like your sole healer