So, I'm gonna be the old fart spoilsport here and say that, generally, picking up a second character is a terrible idea. It spreads people thin and, more times than not, leads to dropping. We've seen it already with some who had to drop one character because taking on a second was too much. It's been the trend for years and years in these games. I think I can count on just two hands the amount of times I've witnessed a player running two characters successfully without any issues arising in the last eleven years of these games. And it's particularly tough to manage when the player isn't entirely sure what to do with either character. 

I know I'm in the minority with this opinion. Still, I'd always recommend focusing on telling a good story with just one concept opposed to splitting focus. But, again, I'm just the old fart spoilsport.