CouchSurfing is a hospitality exchange service by which users can request homestays or interact with other people who are interested in travel. It is accessible via a website and mobile app. It uses a subscription business model, and while hosts are not allowed to charge for lodging, members in some countries must pay a fee to access the platform.
You have friends all over the world, you just haven’t met them yet.

Couchsurfing is a service that connects members to a global community of travelers. Use Couchsurfing to find a place to stay or share your home and hometown with travelers.
Couchsurfers organize regular events in 200,000 cities around the world. There’s always something to do and new friends to meet.

Couchsurfing in Turkey :
https://www.couchsurfing.com/places/turkey