>>531604861
Not really sure what pointers you'd be looking for, but here's a list of the biggest bricks I probably wouldn't bother investing anything into if you can avoid it.
I'm sure people will argue over some of them sMoe, Renge, Momiji and Kasumi are usually pretty poor but with no sHanako you might find some use for them.
Likewise Hina might not be useful enough anymore.
Some of the remaining things like Kayoko / Akane / Hifumi are niche and not something you want to be blanket investing in, but they do have uses.

Not sure exactly what feedback you're wanting, but hopefully the inevitable nitpicking over this might get you some insights.