John Lewis or Rigby and Peller are probably your best bet at the moment. You might find that they recover a bit though so don't go nuts - it's not unusual for breasts to feel really empty when you stop breastfeeding but to kind of plump up a bit afterwards. If they're very empty at the top (the walnuts in socks look) then proper half cups/balconettes - the type where there isn't really a top half to the cup at all - are good as they avoid the gaping that you can find in many fuller styles.
Thanks Statistically that's exactly what they are like walnuts in socks! I thought Rigby and Peller started at a D? I have some lovely big bras from there that no longer fit.. I hope you are right and they plump up but I don't think I will be so lucky.
No, Bravissimo is D+ but I believe R&P do all sizes - their website certainly has a specific A-C section.
You might be surprised, it's very common for them to be really empty after you stop feeding and then rejuvenate a bit. I didn't BF, but after pregnancy and milk coming in (then going away again!) mine were dreadful and whilst they're not amazing now they've definitely refilled a bit.