I ended up doing lots of research on this forum and subsequent filtering based on results I've seen, licensing, associations, whatsapp consultations.
My top 3 were Bicer, Yaman, Turan given they have IAHRS certification.
From there Bicer/Turan had no availability - so I decided on Yaman. I am going to visit Yaman later this month. Please share any questions other things I should be aware about beforehand if you have been treated by Yaman.