Comfortable bras for early developing tween

My stepdaughter is 10 and developing fast. Last I measured her she was a 28D but has gained a cup size or more in the last few months, along with height/build. I haven't re-measured but eyeballing I'd put good money on 30DD or 32D. (I'm a sewist so my estimates are usually dead on)

Up till now we've been able to get away with sports bras, some xs women's and some XL Youth. I'm not sure how much longer that will be possible as she's going to need more support. This problem is complicated by the fact that she has sensory issues

I'm looking for bras with:

Minimal padding

Wider straps

Supportive but not overly restrictive

Are appropriate for a 10-11 YO kid (no lace, plunge cuts etc)

I'm not necessarily opposed to underwire but not quite sure how well she would tolerate it.

I'm very large chested myself, but plus sized so my knowledge of brands for small bands is limited.

Any help is appreciated!!