It might be worth it for you to take a look at Models by Royce - SketchUp / Gallery - SketchUp Community
I think @Royce uses SketchUp Web (free) or SketchUp Go. By perusing his gallery you might get a feel of what can be produced at that subscription level.
Otherwise, many people like the SpaceMouse, which works with SketchUp for Desktop, available in the Pro subscription level: SpaceMouse product line by 3Dconnexion It’s by no means required though.