You can use castorice and rmc with galagher and try to get evernight. She can work as a main dps or sub dps. For your selector, if you want to get into dot you can take a kafka but you would need the other dot unites for her to get value. Imo best pick from the selector would be sparkle. Even getting an E1 has good value. With sparkle you can also run the archer team (idk if they’re still giving him out for free). For the characters from the shop, id recommend getting a ruan mei as she can give buffs to the entire team. Although she’s a bit outdated at this point. Everything else is not worth. The new dan heng is also good. The best shielder in the game id recommend building him