These innovators could generate multibagger returns for investors.Well-chosen growth stocks can create fortunes for patient shareholders. Here are two companies with particularly impressive expansion potential. Consider buying their shares today, and you could position yourself to profit handsomely in the years ahead.Growth stock to buy No. 1: Archer AviationYour next ride to the airport might be on a flying taxi. Archer Aviation (ACHR -1.53%) wants to make this sci-fi-like vision a reality -- and it's fart ...