Current Team:
MC: Wood Elf Archfey Tome Warlock
Shadowheart: Life Cleric
Karlach: Veng. Paladin
Lae'zel: Battlemaster Fighter
Astarion: Thief Rogue
Wyll: Brass Draconic Sorcerer
Jaheira will probably be Land Druid
Halsin will sit in camp like a stump
Minsc will likely be Wildheart Barbarian
No Gale

Won't detail every past team but my own MC's have been Drow Spore Druid, Halfling Swords Bard and Deep Gnome Rogue/Barb
Shadowheart goes Tempest or Life each game, Lae'zel did a game as Open Hands Monk, Wyll usually does Warlock 2/Sorc 10 (but with no Gale, I went full sorc this time), Astarion spent a game as a Beast Ranger. Gale's gone Evoker and Conjurer and I don't know if it made much difference. Even without Sculpt Spell, fights are usually spread enough (and Fireball radius nerfed) that landing AoEs without blasting my party is rarely an issue.