I use Xtend BCAA electrolyte powder from Walmart (it’s on Amazon too)
I’m not an expert at what doses are best so I don’t know if it’s top notch quality but it tastes amazing, has 0 calories, and hydrates the hell out of me
I make my own drink mixes with exactly what I need and when.
Especially considering there is no one size fits all product. I don’t need to drink something designed for a 50 mile ultra in 90 degree heat when I’m doing a simple 5 mile recovery run on the treadmill.
There are (apparently) some good tasting ones, Ultima, Revive, LMNT, we have a good one here called Rehidrat.
But honestly, all you need is a little salt, true story.
Just some redman real salt or pink himalayan salt on your food is all you really need to concern yourself with unless you find yourself genuinely feeling a bit odd, then yeah an electrolyte/hydration supp is a solid move.