Raiden's kit has some interesting and fun ideas. Unfortunately, she lacks strong compatibility with much of the current roster of characters.
A versatile support character, Mona can apply Hydro off field as well as provide some crowd control and empower her teammates.
Not only is she the best free character, Xiangling is currently one of the best 4-Star characters in the game.
Suffer the discount Wrath of the Rock.
If you have no other Anemo characters to work with, the Anemo Traveler is a perfectly fine candidate to consider.
Barbara generally contributes little to her team's offense but she'll most certainly keep them alive with her Talents.
There's way worse kits out there but Yoimiya's definitely could've used more time in the oven.
The best battery are the ones that need batteries.
Noelle is, for all intents and purposes, the first healer "Genshin" players can get in their account.
Beidou is unique in that she's currently the only one in "Genshin" who can parry.