In order to receive a visa for 90 days in Turkey, you must provide a hotel reservation or a rental agreement. Based on this, you can get a visa to Turkey.

There is also another way. When you are in Turkey in the first month of your stay, you can apply to the Aliens Department of the Security Directorate by providing a passport, application, proof of residence, photos and a certificate from the bank. Then on the basis of these documents you will be able to obtain a residence permit for 90 days in Turkey.