Whenever I take a shower my toilet has air bubbles.
Do I need to snake my plumbing?
I live in a mobile home so do I remove the toilet to snake the main line or what do I need to do and how?
Sounds to me like a roof vent is plugged or restricted. Run water from a hose into each roof vent and see if you can clear them. Have someone inside while running water into the vents to insure that if this would cause a water leak inside that you stop before doing damage.
Or run a snake down each roof vent. But don't drive the snake into the drain joint where the vent connects to the horizontal runs. You could damage the drain and turn a minor problem into a major one.