Core Nutraceuticals
INTRA
On a budget grab whatever EAA product you like and add some carbs. If you are only using 20g of carbs I personally don't think HBCD is NEEDED. This, IME, is especially true once you have adapted to using an intra.
EAA's I have used and like:
Mutant GEAAR
AP EAA
Muscle Force BCAA+EAA
RYSE EAA
NutraBio EAA
Rule1 EAA
True Nutrition EAA
Carbs
NOW Malto, Dextrose, Waxy Maize
True Nutrition HBCD, Karboload
Cool-Aid powder (there is a legitimate biological reason to include a little bit of fructose and it was originally included in gatorade for this reason. Relatively small amounts 10-20g/total out of 150g at my peak.)