Goldenseal contains berberine, which is a pretty potent th1 stimulant.
Youre right, most do in one way or another, to some degree. Artemisinin and some of its derivatives are used as immune suppressants in a wide variety of diseases that regularly prescribed immune suppressants are used for, and theres plenty of studies to back that up. Monolaurin is quite mild, not nearly enough t cell stimulation to worry about overcoming an immune suppressing drug, and its very effective against a wide range of pathogens.
Of course, run anything past your doctor before trying it.