They're really low on my list. Actually, they may as well not exist on it. The only one I kind of like is Sharena, because of her Bond-effect (Spd+Def are the best stats).
I promoted All of them long time ago when I have Spare Feathers. I occasionally use them for Aether Raids and Arena Bonus units as well and with the right builds, they can hold their own.
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes