^ I don't like Gale because he feels shoehorned in to being ex-sex buddies with Mystra. I'm new to DnD but I felt like this was some bs. This Rando with Mystra?! Pssh I'd sooner see her with another woman than some Ego maniac who thought he could do something.
As for companions, Alfira for sure, If we can't have Ketheric redemption, then let's go all in for the craziest of them all, Orin. Xeph I've said before; will think of others later.
I mean, that is personal taste, but it is not unusual for Mystra to take human lover. If you think, Gale doesn't deserve that, that's up to you, but it isn't really unheard of.
"We are all stories in the end. Just make it a good one."