I discovered something useful and wanted to share! If you are a Mac user, there's an easy way to get access to these keys: ş ç ı ü ö and ğ You can switch between keyboards really easily!
For OSX there are 3 Turkish keyboards to choose from. To add a keyboard, just go to System Preferences > Keyboard > Input Sources. Then, click the "+" at the bottom of the left column to add the keyboard. Once you choose and add the keyboard you want, you will see a little flag on the menu in the top right of your screen, you can easily switch between keyboards.
The three keyboards are: Turkish, Turkish QWERTY or Turkish QWERTY PC.
For "Turkish," you will need to either have a map of the keys, or know where they are, because it is completely different. "Turkish QWERTY PC" is the same as the Turkish keyboard in google translate, so i is actually ı, the semicolon is ş and there are a few other little differences. I use "Turkish QWERTY." For that, all you need to do is use the Option key + the letter you modify: ıöüğçş Very easy! (Add shift for capitals, of course.)
