So one of my daughter's favorite fighters is Joanna. My daughter has done western boxing since she was about 7 though not religiously in the gym year round. (She also wrestles so she has to divide her time a bit.) It is really hard to find enthusiastic coaches for children in Muay Thai and she specifically has an interest in the Dutch Muay Thai style. Does anyone know where she could find an instructor?
I won't be of any help. But I think an area, where you looking, would be helpful for others, wouldn't it? You won't have anything from an advise that's half a country or more away, so to speak.