HLC is a great clinic, in which the procedure is all done by doctor. It has many great results on the forum which you can search about.
Other good and safe options in Turkey would be Turan, Gur, Yaman, Demirsoy, Bicer, Bekir, Keser, and Pekiner. Their prices start from approximately 1 euro/graft.
In general you need more than 6000 grafts, which could be done in 2 hair transplants.