Sister I am not aware of female Shaykhas. Even sisters are supposed to consult a Shaykh only. You can even have a bayt. It shall be with a curtain between you and your Shaykh and you shall be with a Mahram. You can have correspondence with your Shaykh, with or without bayt, but all your letters to and fro will be read by a mahram. That is how Shuyukh conduct female tarbiyyah. Since your location is Belgium I am rather hampered by my lack of knowledge about the Shuyukh in that region. Our friend Dr76 and other brothers and sisters might be of help. May Allah(SWT) make it easy for you and may He spread the benefits of our Masha-ikh far and wide. May He make Islam a Rahmat for whole of the world - a Rahmat that it is. Wassalam