Cinemaching orbital camera

What do you mean by "orbital cam"? Can you describe in more detail the camera behaviour you're looking for?

Cinemachine is very powerful, and you can get just about any camera behaviour you like. That said, there are a lot of possible behaviours. Take a look at the example scenes shipped with Cinemachine to see some of the possibilities.

Depending on the version of CM that you have, you can import them from the package manager (2.4.0 and up), or from the Cinemachine menu (2.3.x and prior):

 

A small planet can be done, with a little care. You won't find an example of that in the sample scenes.

Assuming that the camera is following the player, the way to set it up is to make sure that CM uses the player's up vector as its world up override. Set that in the CM Brain:



Then, when you make vcams or FreeLooks that target the player, they will orient themselves to match the Player's up vector, which you should manage so that it always points away from planet center. If your player can orient itself differently then you can use an invisible object to track player local up, and use that as world up override in the Brain.