>>2389966SR suits/accessories for the girls you will grind matches with (unless you have an event SSR obviously) > special event items (guts bottles, high exp gifts, etc) > SR suits/accessories for everyone else > XL upgrade materials > poses
Technically poses are "useless" in practical terms but they're the essence of photoshoots so take that with a grain of salt, you're gonna end up getting some for your girls more often than not even if you need some other things more. Don't sweat it too much, there's gonna come a time when the gacha planets align and you get so many coins from an event you'll end up buying all poses for all girls and be set for life, only having to worry about bulk buying the one new pose they put out like once per month from there on out.