Try High Beam by Benefit...its a liquid in a small bottle with a brush applicator...I take the brush and dot it on the areas I want to highlight and blend it in with my fingers or a brush. For an illuminating effect you can mix it in with ur foundation or moisturizer and apply. I like that its subtle and has a dewy, glowy finish.
You could try a MSF, it'll depend on your skin tone though. I use the MSF in Soft and Gentle as a highlighter, I'd recommend the MSF in By Candlelight as well. Hope that helps :)
I have tried smashbox, but it looks nicer at night, its too pinky(atleast for my wheatish complexion) during the day. I have also tried high/moon beam, I like high beam better, again high beam was too pink. My fav is bare essentials all over face colour, you have to try few shades in store to get the perfect match. I have bare rediance, and pure rediance, love both.