TLDR: Nizoral + your preferred curly shampoo
I recently learned that the ‘proper’ way to wash with dandruff shampoo is to massage it into your scalp (without actively trying to clean the rest of the hair), leave it for 5 min, rinse and then wash the rest of your hair with a different shampoo. I end up putting on that second shampoo, Shea Moisture daily hydration for me, kind of like you would with conditioner, avoiding the roots. I use nizoral now for dandruff control, but I’ve also done it with coal tar shampoo (also appreciate that it gets rid of some of the smell).
For reference, I have relatively fine, thick 3A curls with some heat damage.