How to move from osmanbey to tarabya istanbul

Hello,
Firstly you can use Osmanbey- Hacıosman metro to İTÜ Ayazağa metro station. When you reach İTÜ Ayazağa metro station you can use mini-bus to Tarabya or you can use 40B Beşiktaş - Sarıyer number bus. But mini-bus is better choice because you dont wait.
Hope information helps you

How to move from osmanbey to tarabya istanbul