I'll second the LALSG suggestion. It has glycerin and protein, like the Deva gel you like. Also, as Crimson said, "mushy" hair is a giveaway for overmoisturized hair, which can be corrected by increasing your protein. KCCC and SM Smoothie are both fairly moisturizing. You might want to try Biosilk Rock Hard Gelee, which is super hard hold (a little goes a long way). It has protein but is glycerin free.
On glycerin, it's a humectant which will pull moisture from the air and into the hair when the dewpoints rise. That's fine for some, but for others, esp. if they're high porosity, the glycerin can pull in too much moisture, causing frizz and poof.
CG since 11/2011
2c /3a F /Mii, low porosity
Spring Products /Routine:
Clarifying: ACV rinses, Suave Professional Men Deep Clean Peppermint
Low Poo: Renpure Luxurious Argan Oil
Co-washes: VO5 Kiwi Lime Squeeze or Strawberries & Cream
RO: VO5 KLS or S&C, Cure Care
LI (if needed): VO5 S&C, Cure Care
Stylers: HESMU, LALSG
PT: IAGirl's (every 2 weeks or as needed)
Trying: Tresemme Flawless Curls Bouncy Curls gel