I second infusium 23 if you don't mind protein & if you don't have oily scalp.
I used it as a teen and it did amazingly well. You only need a few sprays.
Now I use Hawaiian Silky 14 in 1 for a store brand
Oyin Juices & Berries was okay but I got the same results from water, glycerin, and essential oils with a tiny bit of oil mixed in.
Diluted Giovanni Direct Leave In is good I make sure it's well diluted otherwise it'll feel waxy
If I were searching I'd try Taaliah Waajid Protective Mist bodifier or Jane Carters Leave In
If you don't mind cones the best I've ever used was Garnier Sleek and Shine Leave In
but some people said the cones started drying out their hair.
I have 3c/4a thick stands but not a lot of them so i guess fine haired
Not sure if that helps.
Also another of my favs is Devacurl Set It Free if it came in a bigger bottle it would be my staple
The cheapest I've seen it is here
http://www.yourbeautystop.com/Scripts/prodView.asp?idproduct=17898