I can't help you with dupes (I like Deva stuff too). But, the no poo would be comparable to a cleansing conditioner. It conditions but also has gentle cleansers that don't dry your hair out. No poos and poos with gentle (non sulfate) cleansers are considered curly girl friendly.
2C-3A/ Coarse/ Normal to high porosity/ SW Florida
Cleanse: *CJ Daily Fix, AIA Coco Cowash, Trader Joe's TTT condish, Shea Moisture poos
Condish: CJ Smoothing, Curly Kinks Renew, Darcy's Pumpkin, *CJ Curl Rehab
Enhancers & 2nd day products: *Okra gel or FSG, Uncle Funky's CM, CJ Pattern Pusha
Gels: MGA sculpting, Giovanni LAN, Spiral Solutions FHG, LALSG, *JC Spiralicious