I HATED protein powder when I started using it for the first time. But stick at it and you get used to it.
I remember detesting even Sunwarrior with water... Now I absolutely LOOOVE it! Definitely my favorite.
Just keep your expectations low - protein powder (especially plant protein with water only) is NEVER going to taste as good as a shake. They also tend to be a bit dusty/earthy feeling.
Maybe try adding a little extra cocoa, stevia or other natural flavoring to it to improve the taste. I've read that mesquite has a caramel-like flavor and is also high in protein (but I've never tried it.)
1 teaspoon of stevia is how I initially got used my Sunwarrior, but now I don't even need it
Good luck on your search!