You can use the Rotate tool to rotate your objects on the x,y and z axis.
How to use the Rotate tool
- In the Tools toolbar, if
Animate Current Frame or 
Animate Onion Skin Range mode is enabled, click on it to open the Animate pop-up menu and select 
Animate Off.
- Do one of the following:
- From the top menu, select Animation > Tools > Rotate.
- In the Advanced Animation toolbar, click the Rotate
tool.
- Press the Alt + 3.
- In the Camera view, Ctrl + click (Windows/Linux) or ⌘ + click (macOS) to select your element.
- Rotate the layer.
- You can select multiple layers at the same time. Press Ctrl + Shift + click (Windows/Linux) or ⌘ + Shift + click (macOS) on each element to select them.