I hear the MOP greens conditioner is good but I've not heard anything good about their other products so far.
LaCoupe is the only thing that I've used out of your list and I like the smoothing conditioner.
I've tried Curl Friends and MOP, and I'm not sure what's in either that my hair doesn't like, but whatever it is, it really doesn't like it. I had moderate success, at first, with MOP, but after a few shampoos, it all went downhill. I had zero success with the Curl Friends.
I've used the MOP C system shampoo, conditioner and curl cream - didn't like them at all, esp. the cream which I actually threw out. I found the scent really nauseating. Am now trying the Mixed Greens conditioner but am not enamoured of that either. It's very thick and easy to use too much (made my hair extremely frizzy). Less is more with this. It feels really nice in my hair but when I rinse it out my hair feels not at all moisturised, smooth or anything nice at all. I'll use it up but won't repurchase and wouldn't recommend it.