An elf that actually behaves like an elf and represent all of the more alien and ethereal aspect of their race. For the class, I am thinking a ranger.
Astarion is a lot of fun, but he offers zero elven input into the game, he could perfectly be a human and nothing about his personality or dialogue lines would have to be changed, from a narrative point of view. He is more human vampire, and vampire in general, than elf in any way.
A lawful good paladin, of course, maybe youthful and newly ordained to make it more quirky and fun, I am thinking a pseudo-Alistair kind of character. Could also be a fighter.
A jokester, chaotic-good do-gooder, always lighting up the mood and looking after the others. Could be a bard, or even a cleric of some lesser popular and used deity, like... I don't know, Lurue.
And most importantly and whatever it is, something humble and relatable, enough with the super extraordinary backgrounds.