This kind is very popular, although I buy the Sam's Club brand (Member's Mark) protein shakes since they cost about the same amount per protein gram and they're less effort. I recommend buying whatever makes you the most consistent, so if you enjoy mixing your protein shakes then buy powder but if you hate washing shakers then buy premixed ones.
Optimum nutrition double chocolate (or vanilla). I’ve tried most protein powders I’ve seen on TikTok, YouTube, etc. and they are so sweet to me and artificial I can’t do it. Not saying this isn’t artificial but I don’t taste it as I do with others. Solid chocolate flavor and vanilla. They had a flavor called fruity cereal that was limited time im still using, it kinda tastes like watered down fruity pebbles