Where should you focus for buying high segment villa in Istanbul?

If you want to buy a high segment, Luxury villa in Istanbul, Turkiye your primarily destination should be next to Istanbul Bosphorus.
Istanbul Bosphorus is worlwide most beautiful, desired location.
Besiktas, Sarıyer, Beykoz, Uskudar are popular living spaces next to Istanbul Bosphorus.
If you want to have your own, seperate, isolated living content you should think of buying villa.
Mentioned the criteria of villa, the next topic it should be clarified is the level of budget for buying villa.
The candidate locations for buying next to Istanbul Bosphorus would be Levent- Besiktas, Bebek- Besiktas, Etiler- Besiktas, Emirgan, Yenikoy- Sarıyer, Uskudar, Cengelkoy and Beykoz.
The budget in these areas of buying a (high) segment villa would start from around 2,5 million dollar and will reach up to 6-8 million dollars.
Ultra Luxury villas are not considered at my criterias.