What brand of type f trans. fluid are you using/recommend??

I've heard of some people swear by using tractor hydraulic fluid. I use a type F/ dexron mix myself. Or whatever's on the shelf.
That's what I use with no issues 303 hyd fluid I do put in two quarts of dextron just to dye it red to see on the stick 5 gallons of 303 run under $30 usually.