Curse of strahd replacement player

I am a newer dm looking to fill an empty seat for a Tuesday 11pm est group that has started Curse of strahd  weekly but had a player drop out due to the time no longer working for them. The group is at lvl 3 and consists of a cleric, paladin, fighter, and wizard. The group has an artificer and a mimic accompanying them and they just finished death house and are now in the village of barovia. I share what books I own with the group which includes lots of races, subclasses, and some extra classes. We play using discord and DnD beyond. The sessions normally run for several hours. Normally 11pm-4am EST

18+ just to be safe

we are also using the 5.5e rules and character options

I'd be down, I don't know too much about the module but I've been playing dnd for about 5-6 years and I generally lean towards rouge/charisma casters. my discord username is etroonn