On list is Linear Technology LT317/LT337. These are the upgraded version of the common regulator IC LM317/LM337 in terms of load regulation, thermal regulation and voltage reference precision. Particularly, LT parts excel LM parts in terms of regulation at high current.
Unfortunately these LT regulators were obsolete for a long time. We now have some used ones. We 100% tested them in our own 317/337 regulator board running at 500mA to ensure their functionality. 
