Some options: Ombrelle, Naked Sundays Collagen Glow (it's tinted), Paula's Choice has two ++
Again I don't believe you have to have several unless you want a few to play with. NC40 cool so R++
Do you feel the Dior lip glow oils are worth it? I like hydrating and decently long lasting
Yes and here is what I not only wear but what I keep in my kit...Rop++
MUFE the new Hydra Glow a little DIor Star Filter-like