I don't like either Monster or RBull. I like a few local ones here, don't think they are known. Also I have started to drink more of the sugar-free vitamin ones, taste worse but trying to regain some health back with food and exercise .
A good black or chai tea, fresh brewed at proper temperature with a bit of sugar... mmmm! Also Lady Grey Tea + Milk + Sugar = Fruit Loops tasting tea... just saying.
Original NOS, Original Monster and the juice ones. I try anything that comes out even the horrible sounding ones like cucumber Rockstar, it was bad, barely finished it. Not a fan of Redbull as it's double the price of everything else.
Energy drinks seem to have no effect on me, so I just go with water or juice. Although coffee helps me get up in the mornings, not really but just gives me something to take my mind off sleep.