I play a hexblade warlock/clockwork sorcerer in our current DnD campaign. It is tons of fun. I would love to see at least the hexblade included. There is a mod for warlock subclasses, so I actually play a hexblade in BG3 right now and it is so nice.
Hexblade is everyone's favorite, who has tried it.
It has one main stat to worry about, and Charisma is a great "face of the party" RP stat.
Now when you say "our current DnD campaign", I take it you mean a table top or online session (Don't know of any multi-class mods in BG3).
I have posted this in the past, but for those who don't know, there is great mod support for the classes we all wish that Larian had time to include.