Renegade, do you have a budget? There are many good options, however high quality Proteins aren't cheap.
The best are whey proteine isolate. Micro filtered is preferable. Both unjury & nectar are top quality powders. But they are somewhat expensive.
Six Star is a good option on a budget, but really is barely palatable in my opinion.
And you are right. High quality RTDs are quite pricy. Typically around $4 for 30g or $5 for 40g, whereas even the best powders are about 1/2 that cost per gram of Protein.
Btw both Unjury & Nectar offer sample packs. I highly recommend getting one from each so you can finds what you like.
Another thing, when you try Unjury chicken soup flavor, don't overheat it.