I’ve gone through a bunch of things and a lot of money over the years and am now back to Gatorade, which I spike with 1/8 tsp of pure sodium citrate. I have a super-high sweat rate and sodium requirement - trying to meet this with something off the shelf is way expensive. It works great for me, riding here in the hot, humid southern US.
I carry my customized G-ade, and pure water to wash down a gel, banana, half a Clif bar or similar – every 30 minutes on hard group rides; every 60-75 mins going easy.
All of these products have a couple of weird items in them. If that were a disqualification, we wouldn’t use any of them.