Listed above in order of my personal preference, although the case can be made for each one of these to be atop the list. One is a speculative penny stock with outstanding potential, one is a late stage, almost mature, pharmaceutical trading like a penny stock and one is a paradigm changing combination of the other two.
Also noteworthy, 3 is a Fibonacci number.
"Triad" is a song written by David Crosby in 1967 about a ménage à trois, a subject perfectly in keeping with the "free love" hippie philosophies of the day. The song's lyrics were largely inspired by the hedonism and sexual freedom that Crosby enjoyed at his home in Beverly Glen in Los Angeles during 1967. However, the song also features allusions to author Robert A. Heinlein's science fiction novel Stranger in a Strange Land, with references to "sister lovers" and "water brothers."