How does one develop right view in the space of multiple views?
Ballanced skepticism.

You cannot force yourself to believe in rebirth. You can only educate your mind not to grasp firmly to the view that there isn't. If you adopt a ballanced attitude, that considers the several options without being partial to any option, then I think it's close to the best possible attitude. The true right view, of believing in rebirth, non material worlds, the existence of arahats, and so on, can only arise when you verify it yourself, beyond doubt. Until then, it's all provisional. So don't grasp views, especially those that might become an obstacle to liberation. Because I believe this is actualy the main point.