Recommendations for bits for beginner (new CNC)?

I know this has been asked before, and I tried to get a general sense of what people were saying. I got a used Shapeoko 3 XXL, but no bits included. I've read that I should get cheap bits to start to learn with and upgrade appropriately. It's such a new field for me, that I don't even know what is a considered a quality cheap bit. Any and all links would be helpful!