>>2499183Usually the most efficient option is to pull whatever is the current 'event' suit, as it'll have a 'Trend' effect added to it, giving the girl higher stats during event matches and increased rewards (more event currency, etc..). Currently this is the 3rd banner from the top, bellow the paid Kokoro ones. You can also use red tickets to pull it.
The nostalgic gacha is good for getting suits that you might've missed, though I think they rarely have a 'trend' effect since they're re-releases. You can go for this one unless you're worried about min-maxing (which you shouldn't, in my opinion, go for the suits you think are hot, that's the point of this game isn't it?).
I would recommend NOT using currency to pull the regular SSR gacha (second to last banner). Use only the white tickets for that one. That gacha only has each girl's most basic SSR suit, which often has underwhelming stats. You'll get all of those suits eventually from the guaranteed SSR tickets we're given every once in a while.
