selling shiho isn't all that necessary because lol 3 rainbow crystals only, but you can do so if you want to. otherwise just use her as exp fodder (or for shiho if her skill is not 5/5 yet for some reason)

for DMM side, my comments would be:
Current Mage Armor Spotlight Platinum - Palffy the plat mage armor. pretty decent as a secondary tank (or maybe even primary) and you don't have to buy raichi (gold mage armor) from TP thanks to her.
Current Bandit Spotlight Gold - decent for a duelist. at least she'll be easier to aff up than eunice/mortimer. (and since you'll eventually need plenty of gankers and duelists, you'll want to level her on top of eunice later on)
Gold Ranger - useless. especially for one who has bashira. even daniela is arguably better than her. traps are nice but her damage isn't fantastic and gets worse thanks to lack of range and anti-air bonus as compared to archers.
Gold Druid - can't comment but I feel it's hard to use her as a core unit. then again, I don't know how to use her effectively so that might be a reason.
Gold Magic Swordsman - decent duelist. in fact, in current DMM event I used her + sybilla on friend account to clear out all the tigers where I usually use 3 duelists. granted, sybilla tanks the most of it, but her occasional magic damage helps with killing the tigers.
Yuyu - obviously best pick. you can potentially skip cloris altogether if you get a chance to clear current event 3rd map 1* for belinda.
Silver Mounted Archer - rather useless since you have magic swordsman. sure I did use her a couple of times before when my team was weak (as a lvl 30 pre-CC 0 aff ranged melee lol), but havent even had time to level her and use her recently.