Agave and honey are humectants, but not as powerful as glycerin. I am VERY sensitive to glycerin, but can use all other humectants without a problem.
A lot of people add aloe vera gel to their FSG/okra gel- (not sure why I didn't, but will add it to my list of to-do experiments, lol!) It's a humectant too, but has hold as well. I've also read that the thickeners themselves have some holding powers.
2C/ Coarse/ Normal porosity/ SW Florida/ Transitioning to gray
Cleanse: CJ Daily Fix, JC Cleansing Cream, TJ Tea Tree Condish
Condish: JC Too Shea, CJ Curl Rehab (both as RO & LI)
Stylers: UFD CM, CJ PP, JC Spiralicious, Darcy's Cream Gel & Cocoa bean whip