I have used Redken Guts and it's okay. It's really not quite enough for me. Stylist used this on me today and, while it looked great initially, it's fallen flat now just a few hours later
Right now, I use a combination of Cibu "Mousse Lee" Volumizing Mousse (it's a foam), and some Graham Webb Thickening Foam (it's in a pale green can). That Graham Webb stuff works wonders even on its own.
The Cibu is probably going to be hard to find as it is the house brand of one of our local salon chains in the DC area. I don't think it's sold anywhere else.
Another one to try is Bedhead's Queen for a Day. It's works well at first but my hair does fall with it.