I would say if you plan to do a lot of smooth-talking like deception and persuasion it's definitely a good idea to make sure your main character has high charisma as it doesn't seem like we can have other party members do the talking. Classes that use charisma as their primary stat for combat as well like Warlocks and Sorcerers are my recommendation. If you roll with a character that doesn't do charisma to talking then definitely plan on more combat. I can see how this might be annoying but I don't mind it. It's just nice to see an RPG where charisma is actually somewhat important and not just a dump stat. Personally I'd rather play as a wizard but alas Sorcerer or Warlock it will have to be.